The last banana: A thought experiment in probability - Leonardo Barichello

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TED-Ed

TED-Ed

9 жыл бұрын

View full lesson: ed.ted.com/lessons/the-last-ba...
Imagine a game of dice: if the biggest number rolled is one, two, three, or four, player 1 wins. If the biggest number rolled is five or six, player 2 wins. Who has the best probability of winning the game? Leonardo Barichello explains how probability holds the answer to this seemingly counterintuitive puzzle.
Lesson by Leonardo Barichello, animation by Ace & Son Moving Picture Co, LLC.

Пікірлер: 914
@StudentPursuit
@StudentPursuit 9 жыл бұрын
Just eat the banana she's so hungry that she thinks that the cat is a person
@the_critique4453
@the_critique4453 5 жыл бұрын
Good observation
@throatychunk
@throatychunk 4 жыл бұрын
cats also need food but considering the island appears to be made out of spam, they're both delusional.
@rujujoshi8406
@rujujoshi8406 4 жыл бұрын
LOL
@reinatr4848
@reinatr4848 3 жыл бұрын
@@throatychunk bananas are bad for cats
@francegamer
@francegamer 3 жыл бұрын
better yet eat the cat
@bored_person
@bored_person 8 жыл бұрын
i'd just suggest we split the banana.
@trustinjesus1119
@trustinjesus1119 8 жыл бұрын
+ijfharvey Ray Comfort is the banana man.
@bored_person
@bored_person 8 жыл бұрын
TrustInJesus111 You mean Ray Cumfart?
@bored_person
@bored_person 8 жыл бұрын
TrustInJesus111 Ok, I'm blocking you now.
@cloudcadet5889
@cloudcadet5889 8 жыл бұрын
I don't remember that cats eat bananas or can stand on 2 legs and shake hands and throw a dice
@pickledchildren9096
@pickledchildren9096 8 жыл бұрын
Id just eat the banana lol
@KeaganKenalty
@KeaganKenalty 8 жыл бұрын
how do you find dice on a deserted island yet no food
@gayathrivenkatraman6519
@gayathrivenkatraman6519 7 жыл бұрын
And there is also the fact that you have vegetation all around you
@carloscaro9121
@carloscaro9121 7 жыл бұрын
...a cat also won't eat a banana.
@tonything1636
@tonything1636 6 жыл бұрын
at the walmart, but they may not be organic
@angelthemerciless8784
@angelthemerciless8784 6 жыл бұрын
They had dice with them.
@Patrickhh69
@Patrickhh69 5 жыл бұрын
It's OUR island, but we do die.
@anitkaurbagga7936
@anitkaurbagga7936 8 жыл бұрын
Real solution: Don't buy odd number of bananas
@valen8560
@valen8560 5 жыл бұрын
distributing equal number of bananas to each individual doesn't make it fair. Just split the banana is good enough
@mobeenkhan824
@mobeenkhan824 5 жыл бұрын
Valen Cheung How is that not fair?
@OldHunter_blaidd
@OldHunter_blaidd 4 жыл бұрын
What if there is an odd number of people
@minimalistic_banhaus
@minimalistic_banhaus 4 жыл бұрын
You think they bought the banana at the Deserted Island Whole Foods?
@aryananand9854
@aryananand9854 4 жыл бұрын
Or don't buy bananas at all.
@iso9953
@iso9953 8 жыл бұрын
Using a computer simulation in python, I tried this out: Results: Player A: 44.4457644446% (expected: 44.444444444%) Player B: 55.5542355554% (expected: 55.555555555%) from random import randint pA = 0 pB = 0 trials = 9999999 def experiment(): global pA, pB nA = randint(1,6) nB = randint(1,6) if nA == 5 or nA == 6 or nB == 5 or nB == 6: pB += 1 else: pA += 1 return None for i in range(trials): experiment() print 'Results:' print 'Player A: ', str(100*(float(pA)/trials)) + '%' print 'Player B: ', str(100*(float(pB)/trials)) + '%'
@PeterGeras
@PeterGeras 8 жыл бұрын
+lee melymick python did a good job? This has nothing to do with python lol. If anything, the formula that generated the pseudo-random numbers in the function randint did a good job.
@shamansamuelgodfrey910
@shamansamuelgodfrey910 3 жыл бұрын
It took me a while, (I'm still a beginner in Python) but I got it! But is the return statement really necessary though? Agh, for loops are so confusing for some reason lol. :P
@KJKP
@KJKP 8 жыл бұрын
Here is a thought experiment: This is a coin toss game. It's called "Heads I win; Tails you lose." Enjoy.
@hahano1772
@hahano1772 8 жыл бұрын
+KnowJesusKnowPeace ... oh you.
@Plus2Cuber
@Plus2Cuber 8 жыл бұрын
LOL
@dramawind
@dramawind 8 жыл бұрын
My dad trolled me with this when I was around 8 years old. I didn't get why I was losing all the time.
@1neSUPREME
@1neSUPREME 6 жыл бұрын
If it falls on the side, he wins.
@ironcito1101
@ironcito1101 6 жыл бұрын
Roll the dice, don't think twice.
@djsyntic
@djsyntic 8 жыл бұрын
Interestingly you can easily make this game fair by adding one simple rule. 3) If both dice come up a five or six then a re roll is required. This means that Player 1 still has a chance of winning of 16/36 with one roll. Player 2 however now also only has a 16/36 chance of winning. There is a 4/36 chance you will need a reroll that leads to a situation with the exact same chance on either side of winning. So about half the time player 1 will win, and half the time player 2 will win. There is an very minute chance that you will require rerolls until you are both sick of the game.
@LeonardoBarichello
@LeonardoBarichello 8 жыл бұрын
+DJ Syntic Interesting idea!
@Jimpozcan
@Jimpozcan 8 жыл бұрын
+DJ Syntic Instead of rerolling, you could make the rule that Player 1 wins if both dice come up the same (i.e. two 5s or two 6s). Easier still, though, you could just roll one die and if it comes up odd, Player 1 wins, and if it comes up even, Player 2 wins.
@markten6691
@markten6691 8 жыл бұрын
+DJ Syntic Or just throw one die since there is an even number of sides.
@metallsnubben
@metallsnubben 8 жыл бұрын
+Mark Ten Well, that's just not complicated enough. Frankly, I'm insulted by the idea of having any less than 50 dice of varying polyhedral shape with you on a deserted island.
@wagnerrrrr
@wagnerrrrr 8 жыл бұрын
+DJ Syntic Umm that doesn't even work? There's only a 2/36 chance of rolling two fives or two sixes; there is a 2/36 chance that a reroll would occur. If player 1 would win with these two outcomes then both players would have 18/36 = 50%. With your suggestion, player2 has 50% of winning plus a chance at the reroll. Besides, mathematically it would be possible that the game would go on until the end of time with infinite rerolls.
@amritpalsingh517
@amritpalsingh517 8 жыл бұрын
Here's an improvement in the method which can give you 78% probability to win. Be the second player so there are 56% chances you will win. If you win, just take the banana, but if you lose (44% ) start trying to beat the other player physically, assuming both are equally strong, there are another 22% (50% of 44%) chances you will win, so in total there are 78% chances you will win.
@the_chalkface
@the_chalkface 8 жыл бұрын
only if you assume the other player is more trustworthy than you have turned out to be. if they fight you when you win like you plan to do to them the original game actually becomes irrelevant and it reduces to a 50% chance for both.
@PutYoRhymeOn
@PutYoRhymeOn 6 жыл бұрын
Right. Who's to say the other guy won't fight you when you win and will be fast enough to eat the banana before you even start a fight when you lose? (assuming you have an equal chance to be fast enough to just eat the banana when you win before the other guy starts a fight with you.)
@mambodog5322
@mambodog5322 6 жыл бұрын
You know, I think a huge cat will beat a person of equal size (because claws and teeth).
@JohnDixon
@JohnDixon 6 жыл бұрын
Or you could roll the die first, and then just eat the banana while the other player rolls their die. 100% probability
@david_ga8490
@david_ga8490 5 жыл бұрын
Anthony Clohesy lol 69 likes
@ergogray3143
@ergogray3143 8 жыл бұрын
THANK YOU, THANK YOU! Finally a mathematician that explains theoretical probability near the end of this video and doesn't try to seduce people with mathematical slight of hand by distorting reality. Leonardo Barichello for the win!
@LeonardoBarichello
@LeonardoBarichello 7 жыл бұрын
Thank you :)
@lprocks555
@lprocks555 9 жыл бұрын
CATS ARE CARNIVORES THEY CAN'T EVEN PROPERLY DIGEST BANANAS
@oksananakonechna128
@oksananakonechna128 5 жыл бұрын
haha lol
@evanc4001
@evanc4001 5 жыл бұрын
My cat eats pazzeles.
@matttejada7381
@matttejada7381 5 жыл бұрын
They are omnivores, you probably never seen a cat eating grass just like my neighbor's
@Deathnotefan97
@Deathnotefan97 5 жыл бұрын
@@matttejada7381 Actually no, Cats are obligate carnivores If they eat grass, it is most likely because they are trying to induce vomiting to clear out something irritating it's stomach (fur, parasites, etc.) That said, even obligate carnivores can consume plant based matter in small quantities, most cat foods are a blend of animal protein and starch (the plant matter in cat food is processed to be more readily digested, if that same plant matter were encountered in the wild, the cat's stomach would have a hard time breaking it down)
@tacos394
@tacos394 4 жыл бұрын
@@Deathnotefan97 thanks for this information
@backattack1573
@backattack1573 8 жыл бұрын
You know, just devide the banana into two
@iqbaltrojan
@iqbaltrojan 8 жыл бұрын
+✏Hello_Random✏ i was gonna say to :D
@eIucidate
@eIucidate 8 жыл бұрын
+Turtles and then eat the person
@MariaNicolae
@MariaNicolae 7 жыл бұрын
A banana is a banana, you can't say it's only a half.
@The_Fabricator
@The_Fabricator 7 жыл бұрын
well TJ "Timestoppa" Yoshi!
@fishydids
@fishydids 7 жыл бұрын
luigisghost227 but first, we need to talk about parallel universes.
@sunwukong3074
@sunwukong3074 8 жыл бұрын
I just wanted to be the cat
@lai17
@lai17 5 жыл бұрын
furry
@the_critique4453
@the_critique4453 5 жыл бұрын
Aww
@Irondragon1945
@Irondragon1945 4 жыл бұрын
Hecking furries cheating us out on our food
@melontusk7358
@melontusk7358 4 жыл бұрын
But the (Schrodinger's) cat is in the box
@daddywambat
@daddywambat 9 жыл бұрын
Or player 1 and player 2 could not be greedy assholes and just split the banana in half...
@MeTr1ckZUCSGO
@MeTr1ckZUCSGO 9 жыл бұрын
"A thought experiment"
@1_____________________
@1_____________________ 9 жыл бұрын
Сабыркулов Эмир He made a thought experiment aswell...
@sakujo20
@sakujo20 9 жыл бұрын
Greed? You dont wonder why you would have only one banana on an island but wonder why they are greedy? Besides people would probably kill each other if they are starving and just one banana is out there... Wonder if some psychologist would call a starving one killing another starving one so he can get the banana "a greedy one"...
@daddywambat
@daddywambat 9 жыл бұрын
Musti C. In reality, one banana isn't going to sustain you for very long and you're most likely going to die. So there wouldn't be any point in making the last thing you did with your life killing someone for a single banana.
@sakujo20
@sakujo20 9 жыл бұрын
Doug McQuade yep. That is the best way. But not many ppl out there will do it. I mean... If u would ask me.. now I would say that I would never ever kill any one. But my dear... when rly something like that happens. I wonder if I will still think the same way I do right now. Ate pasta and a cookie and enjoying my tea right now.. no starving I sight but not excluded either. Starving is the hardest death someone can have, imo. There are ppl who ate their hair cuz they were starving. And a banana is definitely better than hair ^^'.
@rebeccarich7282
@rebeccarich7282 4 жыл бұрын
Only in a math problem can a cat and a kid decide to play a game this complex instead of splitting the banana or making a much more simple game. . . Great video! :)
@joeybiegel6807
@joeybiegel6807 9 жыл бұрын
Math Utility helped me so much! That proportions with variables video went through the whole process in less than a minute! They tromp the competition, and I will always rely on these videos! Give them a check-out, because honestly you wont regret it
@luckingk2537
@luckingk2537 4 жыл бұрын
Soo satisfying to watch these videos after you learn it's topic. Just had some lessons in college about probability and that's really accurate!
@lopsidedhead
@lopsidedhead 6 жыл бұрын
Seems like all these probabilities go out the window when I'm playing DnD
@XD8DISTURBED8XD
@XD8DISTURBED8XD 9 жыл бұрын
I'm not greedy, I would just share the Banana.
@ZeeGhost713
@ZeeGhost713 5 жыл бұрын
Nope *takes your half and my half of the banana and eats it in one bite* meh benana
@sudheerthunga2155
@sudheerthunga2155 4 жыл бұрын
Nice video, explaining both the methods ....and the difference between theoretical and experimental probability...
@scarletovergods
@scarletovergods 8 жыл бұрын
BONUS QUESTION: Three people roll one die each. if the smallest number rolled is one - player 1 wins. If the smallest number rolled is two or three - player 2 wins. If the smallest number rolled is four, five or six - player 3 wins. Who has the best probability of winning the game?
@martijnbouman8874
@martijnbouman8874 8 жыл бұрын
+scarletovergods Player 2 has the highest probability; his probability of winning is 4/9. The probability for player 1 is 31/72, which is very close to that of player 2, but for player 3 it is only 1/8.
@rohansinha2817
@rohansinha2817 8 жыл бұрын
+scarletovergods Player 2 has the highest probability of winning. Player 3 has the lowest.
@markten6691
@markten6691 8 жыл бұрын
+scarletovergods SOLUTION Player 1: 1 - (5/6)^3 = 91/216 Player 2: (5/6)^3 - (3/6)^3 = 98/216 Player 3: (3/6)^3 = 1/8 = 27/216
@markten6691
@markten6691 8 жыл бұрын
+Mark Ten DETAILED SOLUTION For player 1 to win, there must be *at least* a 1. The probability of getting at least a 1 is complementary to the probability of not getting a one. Probability of not getting a one = probability of getting all 2-6s = (5/6)^3 Hence, probability of getting at least a one = 1 - (5/6)^3 = 91/216 For player 3 to win, there can only be 4, 5 and 6. Thus the probability is simply (3/6)^3 = 1/8. Since the probabilities of each player winning all add up to 1, the probability of player 2 winning is simply = 1 - 91/216 - 1/8 = 98/216.
@martijnbouman8874
@martijnbouman8874 8 жыл бұрын
Mark Ten You are right. I must have made a small mistake.
@maximuscesar
@maximuscesar 9 жыл бұрын
Why play dice over a banana? If they have 2 dice they could have been playing RPG instead!
@woodfur00
@woodfur00 9 жыл бұрын
DICE IS ALREADY PLURAL YOU DICKWAD unless English isn't your first language in which case I politely inform you on this matter without swearing
@maximuscesar
@maximuscesar 9 жыл бұрын
No, English is not my primary language and I never been on an English school. Thank you very much for the advice.
@gnomee9447
@gnomee9447 9 жыл бұрын
maximuscesar The singular would be die, like in the video. Although this form is rarely used.
@woodfur00
@woodfur00 9 жыл бұрын
maximuscesar Great! I'm glad we could have this intelligent, mature conversation.
@woodfur00
@woodfur00 9 жыл бұрын
Mauri .tanga I can't argue with that. Excellent point.
@soulreaperichig0
@soulreaperichig0 7 жыл бұрын
It doesn't matter who wins because in the end both are gonna die if that's the last piece of food left. Unless help arrives ofc.
@jagrubster
@jagrubster 6 жыл бұрын
How have I never seen this one! Love it!
@youssefelbouty
@youssefelbouty 5 жыл бұрын
Ted ed for the million time you are my best KZbin channel
@Markus9705
@Markus9705 9 жыл бұрын
Okay. If number 1-4 comes up on the first dice, there's a 2/6 chance that it will be 5 or 6 on the second one, but if number 5-6 comes out on the first dice, player two have already won. So the total probability P(player one winning) = (1/6 * 4/6) + (1/6 * 4/6) + (1/6 * 4/6) + (1/6 * 4/6) + (1/6 * 0) + (1/6 * 0) = 4(1/6 * 4/6) + 2(1/6 * 0) = 4/6 * 4/6 + 0 = 16/36 = 4/9 ≈ 0.44. And P(player two winning) = 1 - P(player one winning) = 1 - 4/9 = 5/9 ≈ 0.56. We can also count the numbers of successful outcomes for player one and divide that by the total amount of outcomes, like so: P(player one winning) = (4 + 4 + 4 + 4)/36 = 16/36 = 4/9.
@sarans97
@sarans97 9 жыл бұрын
Could you guys also try explaining Bernoulli's trials?
@ElectricIguana
@ElectricIguana 9 жыл бұрын
This just took my RISK(tm) game to a whole new level
@henrythegardener5630
@henrythegardener5630 8 жыл бұрын
First one of these videos I could figure out.
@francoearllacno4274
@francoearllacno4274 9 жыл бұрын
If it were me I would give the banana to the cat so it will be healthy once I ate it. YUMYUM CAT STEW!!
@VividBagels
@VividBagels 8 жыл бұрын
Franco Earl Lacno Although, that is a bit inefficient. I think you can see this in the Food Pyramid or something like that.
@YoHoOMirster
@YoHoOMirster 8 жыл бұрын
+Franco Earl Lacno I don't think a saltwater cat is yummy.
@kavitagracenelson8670
@kavitagracenelson8670 8 жыл бұрын
+The Gaming Oracles Faith in humanity vanquished. Congratulations.
@kaidatong1704
@kaidatong1704 8 жыл бұрын
No the cat is too huge. Even if I beat it, it will scratch me and I will get infected, andjust recovering from that would take a ton of energy.
@roreah
@roreah 7 жыл бұрын
Not if it's asleep
@JackClawson
@JackClawson 9 жыл бұрын
Good Morning! watched this last night and slept on it, this morning it hit me on how one might even the odds... add that all doubles go to the first player. The only change will be the 2 matches which would have been going to the second player so 16-20 become 18-18.
@jotcw81
@jotcw81 3 жыл бұрын
Me and my buddies took notes of the dice rolls whilst playing the boardgame Risk many many times. Perfect Gaussian distribution.
@LuisPerez-gr3eo
@LuisPerez-gr3eo 8 жыл бұрын
Another bonus answer: If the biggest number is 1, there is 1 possibility to win for player one; if it's 2, there are two; if three, three, etc. So, player one's possibilitys are ((1+2+3+4)*2)-4=10*2-4=20-4=16 and player two's are ((5+6)*2)-2=11*2-2=22-2=20. The *2 part is for the cases where whats explained before happens with the other dice. The -4 is for the ones that are repeated (1 and 1, 2 and 2, 3 and 3, 4 and 4), and -2 is for 5 and 5, 6 and 6
@shutupthatepic
@shutupthatepic 8 жыл бұрын
I did 2/3 * 2/3 = 4/9, and 1-4/9 = 5/9
@EthnoKuchToByMohanish
@EthnoKuchToByMohanish 8 жыл бұрын
on a beach...you cant be left with just one banana...i'd rather go fishing !! but the probability is very well explained!! TEDed rocks!!
@MariaLostFairy
@MariaLostFairy 9 жыл бұрын
amazing work on all of your videos
@namankhanooja5372
@namankhanooja5372 9 жыл бұрын
This awesome channel deserves more subscribers
@Amoebatirith
@Amoebatirith 9 жыл бұрын
And this is why I have rolled quite a few critical misses in the past few weeks of D&D... Nothing like having three critical misses in a row with a 5% chance that I am going to roll a 1 on a D20 each time I roll. It's almost to the point that I have a huge amount of anxiety come up whenever I am rolling my attacks.
@colonelgraff9198
@colonelgraff9198 9 жыл бұрын
DO YOU LIKE BANANAS? Cuz I know where you can find bananas! ON THE MOOOOOOOON!!!!
@maiseducacional
@maiseducacional 5 жыл бұрын
Excelente ideia!
@AlfonsoGeneroso
@AlfonsoGeneroso 9 жыл бұрын
Thanks. Simply great. I love you people.
@hahano1772
@hahano1772 8 жыл бұрын
I know what I'm doing now during the apocalypse!
@shambosaha9727
@shambosaha9727 3 жыл бұрын
Little did you know...
@justinwhy6550
@justinwhy6550 5 жыл бұрын
The comments section here signifies the end of progress of humans
@mysticdragonex815
@mysticdragonex815 3 жыл бұрын
But aren't you a part of that too?
@lucaspawprint1888
@lucaspawprint1888 3 жыл бұрын
Accept for the top comment which suggest they split the banana.
@pmcate2
@pmcate2 3 жыл бұрын
@@lucaspawprint1888 Lol. Exhibit A. (That is, if you are a native English speaker)
@Mason-hs9oz
@Mason-hs9oz 3 жыл бұрын
Meh. I'm allergic to bananas 🙀
@173kratos
@173kratos 9 жыл бұрын
The problem was fairly easy even before the explanation, but great video. Haven't heard of probability in a while
@metleon
@metleon 6 жыл бұрын
If you make it so player 1 wins if the highest number is 1, 2, 3, or 5 and player to wins if it's 4 or 6, they'll each have a 50% chance of winning. Also, if you use dice with sides that are divisible by 4, you can give the lower 4th and the upper 4th to one player and the middle half to the other and they'll both have a 50% chance of winning.
@anjalikashyap8739
@anjalikashyap8739 4 жыл бұрын
How come the Cat is rolling dice?😂 My Cat only knows how to Make scars on my face😂
@ratpyramid
@ratpyramid 4 жыл бұрын
It is not really there and the game is all in the girls head
@anjalikashyap8739
@anjalikashyap8739 4 жыл бұрын
@@ratpyramid agree✌
@themysteriousgravityfalls
@themysteriousgravityfalls 7 жыл бұрын
Thanks for giving me more ideas about how to rig my casino.
@gdcthegoat
@gdcthegoat 4 жыл бұрын
put it on playback speed 0.5 and thats how fast my teacher speaks
@schwarzerritter5724
@schwarzerritter5724 6 жыл бұрын
You can simply do these calculations in your head if you calculate the chance of NOT rolling a winning number. Each die has a 2/3 chance of not rolling a winning number, multiply them and you have a 4/9 chance of not winning, meaning you have a 5/9 chance of winning. This works for any number of winning numbers and any number of dice.
@FamilyFizz
@FamilyFizz 9 жыл бұрын
Fascinating stuff! ☺
@Samadkhan-mv9hw
@Samadkhan-mv9hw 3 жыл бұрын
hello
@frosted1030
@frosted1030 9 жыл бұрын
That made both my brain and banana hurt.
@sarans97
@sarans97 9 жыл бұрын
You should reaallly go back to school.
@jdgcreative
@jdgcreative 2 жыл бұрын
Now if your playing first to 10 points wins, what would the probability that player 2 wins the game overall?
@karunmittal725
@karunmittal725 8 жыл бұрын
First ever Ted-Ed video I didn't need to watch beyond the first 50 seconds.
@willferrous8677
@willferrous8677 9 жыл бұрын
Wait wait wait... So You like... *mmhmm* Bananas?
@goosedude
@goosedude 9 жыл бұрын
OH MY FUCKING GOD
@greengamerny8787
@greengamerny8787 9 жыл бұрын
Lol
@colonelgraff9198
@colonelgraff9198 9 жыл бұрын
DO YOU LIKE BANANAS????
@ZeeGhost713
@ZeeGhost713 5 жыл бұрын
Nope but I'm willing to share mine if anyone wants some ;-)
@KrisBlueNZ
@KrisBlueNZ 9 жыл бұрын
Nine people must have lost their last banana to a smarter cat! Seriously, how can anyone dislike a video like this?
@henriandco
@henriandco 9 жыл бұрын
"probability? I HATE PROBABILITY!!!" *dislikes*
@woodfur00
@woodfur00 9 жыл бұрын
henriandco (Even though the title states clearly that this is a video about probability)
@KrisBlueNZ
@KrisBlueNZ 9 жыл бұрын
You can please ALL of the people SOME of the time. You can please SOME of the people ALL of the time. But there are SOME people that you just CAN'T please!
@woodfur00
@woodfur00 9 жыл бұрын
KrisBlueNZ Doesn't the statement "There are some people you can't please" directly contradict the statement "You can please all of the people some of the time"?
@KrisBlueNZ
@KrisBlueNZ 9 жыл бұрын
Yes. Yes it does.
@jaredjenkins99
@jaredjenkins99 7 жыл бұрын
So player two won. Player two is a cat. Ted-Ed just gave the last banana on Earth to a cat. Congratulations
@HarshDude126
@HarshDude126 2 жыл бұрын
He's a good boy, he deserves it.
@djryken
@djryken 5 жыл бұрын
Hope you boys learned some hustling tricks here this is gold!
@user-eo8zu2hg1e
@user-eo8zu2hg1e 3 жыл бұрын
Why should a cat in an island playing dices for banana?! Cat eat fish. LOL!
@robertbutcher222
@robertbutcher222 8 жыл бұрын
How can player one automatically win if it's a tie ( 1 and 1, 2 and 2, 3 and 3, 4,and 4)? That doesn't make sence, neither number is higher.
@davidschroeder21
@davidschroeder21 8 жыл бұрын
+robert Butcher Its not who gets the 5 or 6 its if the 5 or 6 gets rolled by anyone player 2 wins.
@mrsCrab961
@mrsCrab961 8 жыл бұрын
+robert Butcher and your sence doesn't make sense
@bensmith7130
@bensmith7130 8 жыл бұрын
+mrsCrab Neither does yours so why are you talking.
@Untoldanimations
@Untoldanimations 8 жыл бұрын
confederate flag, nice touch
@lychee349
@lychee349 3 жыл бұрын
I love Ted ed
@sidemail4676
@sidemail4676 5 жыл бұрын
*The Last Banana* Conning to a theater near you
@ShawnRavenfire
@ShawnRavenfire 9 жыл бұрын
Why would I "at first glance" think that player one has an advantage? Player two could win on either die. Even if I didn't sit down and work out the odds like twenty different ways (really, did it take this long to explain?), it would seem like player two had the clear advantage.
@itskelvinn
@itskelvinn 8 жыл бұрын
I was thinking the same!
@georgedude7741
@georgedude7741 8 жыл бұрын
Shawn Ravenfire The reason it might look that way on first glance is that Player One has more sides in favor; any of the first 4 numbers are more likely to turn up than any of the last two, appearing to put the odds in Player One's favor with 2/3 chance of winning. Of course, when one looks at it more carefully, the latter two numbers actually hold a stronger chance for victory when they do turn up; any of Player One's numbers can be overpowered by Player Two's, while Player Two can never be overpowered (Even if Player One gets a 6, it counts as a win for Player Two).
@ShawnRavenfire
@ShawnRavenfire 8 жыл бұрын
George Dolley If you need to explain why it immediately looks like player one has the advantage, then it doesn't immediately look like player one has the advantage.
@lovelymarga
@lovelymarga 7 жыл бұрын
Why would you have a dice when u are stuck in an island....
@mack5383
@mack5383 5 жыл бұрын
Why not?
@saymeownow3838
@saymeownow3838 3 жыл бұрын
Cat:I will take 5 and 6 Girl:hah sucker. 5 minutes later Cat:num num I eet
@RoboBoddicker
@RoboBoddicker 8 жыл бұрын
Just to point out the math for Player 2: *Player 2* has two winning numbers, but he only needs *one* of the dice to be a winning number to win. So his chances are: (5-6 on the first die) OR (1-4 on the first die AND 5-6 on the second die) Pr(Player 2 wins) = 2/6 + (2/6 * 4/6) = 5/9 : )
@dzpak
@dzpak 8 жыл бұрын
+Copydot ........just saw this after posting my comment up there lol. How come the win requirement for player 2 is not just % of first roll >4 OR % of second roll >4 = 2/6 + 2/6 = 2/3. Is this 2/6 * 4/6 part of the win requirement for player 2?
@RoboBoddicker
@RoboBoddicker 8 жыл бұрын
+dzpak Well, think of it like this: if you roll a 5 or 6 on either die, you can stop rolling right? So the odds of rolling the second die at all are dependent on getting a 4 or less on the first. So even though your odds of rolling a 5 or 6 on the second die are the same, there's only a 4/6 chance that you'll *have to* roll that second die. And if you could just add 2/6+2/6... for each die, then for 4 dice you'd end up with an 8/6 chance of rolling 5 or 6. That doesn't make much sense ;)
@dzpak
@dzpak 8 жыл бұрын
+Copydot Cool, that does make sense. We did probability when I was a kid, but can't rmb this type of math coming up lol. Thx for the explanation :)
@LemonadeMouthSomebod
@LemonadeMouthSomebod 9 жыл бұрын
Split the banana god dammit!
@poopymcshitface8592
@poopymcshitface8592 9 жыл бұрын
banana split
@ZeeGhost713
@ZeeGhost713 5 жыл бұрын
*eats the whole thing, don't share any then walks away and rides boat away standing you on the island again*
@twilightprince8190
@twilightprince8190 4 жыл бұрын
player 2 gets 56% of the banana and player 1 gets 44% of the banana
@WilliamPeytz
@WilliamPeytz 8 жыл бұрын
banana will make your teeth go gray.
@3OHT.
@3OHT. 8 жыл бұрын
thanks, doing this for halloween.
@KekachiDolan
@KekachiDolan 8 жыл бұрын
+г-н зонт lik
@3OHT.
@3OHT. 8 жыл бұрын
my teeth r grey, best costume pls rate
@KekachiDolan
@KekachiDolan 8 жыл бұрын
11/10 ign
@shcrimps
@shcrimps 7 жыл бұрын
I think he was talking about dhmis...
@medelinejayasaputra2852
@medelinejayasaputra2852 8 жыл бұрын
it is permutation and combination! a helpful way to win board games haha
@jennyhughes4474
@jennyhughes4474 4 жыл бұрын
But I've always thought that the number 1 side is slightly heavier because they indent holes into the surface for the number of spots, if this is the case number 6 (the opposite side) would come up more frequently than its 'probability' would claim?
@jaydenhpiano5600
@jaydenhpiano5600 8 жыл бұрын
or just split the... GAWD DAMN IT SOMEONE ALREADY SAID THAT
@ZeeGhost713
@ZeeGhost713 5 жыл бұрын
how do I split that? :/
@Zachary-md1ft
@Zachary-md1ft 7 жыл бұрын
100% chance of getting the banana: Plant the banana seeds
@ts9749
@ts9749 7 жыл бұрын
There are no banana seeds in the modern bananas, they are mostly heavily modified so you cannot plant them
@faust666desrosiers
@faust666desrosiers 7 жыл бұрын
Luke banana seeds? Wtf dude? Have you ever eaten a damn banana?
@ts9749
@ts9749 7 жыл бұрын
Luke They arent full grown seeds, your banana has been genetically modified... And the chance of your banana to be real is about 0%
@doejhonny
@doejhonny 7 жыл бұрын
100% chance of getting the banana: Drop the soap in prison.
@aabhinnav
@aabhinnav 6 жыл бұрын
Cheapskate X Videos key and peele for the win, my man!
@Andersl201
@Andersl201 9 жыл бұрын
You can launch a dice in a centrifuge with rockets from the moon, make it land in a fast flowing river, picking up the centrifuge after it has fallen from a waterfall and see what the dice has "rolled", and it still wouldnt be random, as long as you calculate all the variables. Now compared to a flat surface and a simple hand throw to roll some dices wouldnt be hard to calculate.
@mihaleben6051
@mihaleben6051 4 ай бұрын
This definetely counts as game theory
@bananewane1402
@bananewane1402 8 жыл бұрын
why don't they just break the banana in half?
@LughSummerson
@LughSummerson 8 жыл бұрын
+Dragons' Majesty She doesn't want it for eating.
@quadrillion92
@quadrillion92 8 жыл бұрын
+Lugh Summerson DUDE
@bananewane1402
@bananewane1402 8 жыл бұрын
Lugh Summerson 😂😂😂😂
@Hoopergames
@Hoopergames 9 жыл бұрын
yeah but why the fuck would you do it like that ...why not whoever rolled the highesst number wins... is that not the normal way
@MentalVideographer
@MentalVideographer 9 жыл бұрын
The problem there is you could tie. (Theoretically, long enough for both of you to starve.)
@GuyWithAnAmazingHat
@GuyWithAnAmazingHat 9 жыл бұрын
Winning the banana is not the objective of this video, the objective here is to teach you something about how probabilities work.
@woodfur00
@woodfur00 9 жыл бұрын
GuyWithAnAmazingHat I disagree about the unimportance of a plausible demonstrative scenario, but you most definitely have an amazing hat.
@darreljones8645
@darreljones8645 4 жыл бұрын
One fair way to set up the game: Player 1 wins if the total of the numbers on the dice are odd, and Player 2 wins id the total is even.
@ekanthikamanoj9967
@ekanthikamanoj9967 5 жыл бұрын
really good video, like the cartoons and makes sense.
@muammarssamad5357
@muammarssamad5357 4 жыл бұрын
Can anybody stop arguing about what cats eat? It's an example, (FICTION)
@barichello_
@barichello_ 9 жыл бұрын
We have the same last name, lol
@LeonardoBarichello
@LeonardoBarichello 9 жыл бұрын
Yep :)
@ZeeGhost713
@ZeeGhost713 5 жыл бұрын
Doppler gangers? Imposter?
@TWStimes
@TWStimes 3 жыл бұрын
I think each one of them should have 50% of the banana so that way they don't have to do all those calculations.
@xyz___ru
@xyz___ru 7 жыл бұрын
i'm behind in math and this really helped
@bobcanish
@bobcanish 8 жыл бұрын
just split the FUKING BANANA
@many3440
@many3440 8 жыл бұрын
hahahaha xd
@D13djeej
@D13djeej 8 жыл бұрын
You want to be the cat and pray she is a furry.
@ZeeGhost713
@ZeeGhost713 5 жыл бұрын
Yep hopefully
@onesmartgirl4772
@onesmartgirl4772 4 жыл бұрын
*split the banana.* *_Modern problems require modern solutions._*
@atharvpatil6032
@atharvpatil6032 4 жыл бұрын
Actually the coin toss is also unfair when you catch the coin after tossed. You can experiment by tossing 3 times and results are the side which is up when hold 2 times is the result. So to be fair it is wiser to let coin dropped on the ground in cricket games.
@dogemon11music
@dogemon11music 3 жыл бұрын
It is dropped on the ground
@coding8730
@coding8730 Жыл бұрын
Great!
@mellifluente
@mellifluente 3 жыл бұрын
this one was pretty easy, lobe these thoughts provoking videos tho
@erindrawsabit804
@erindrawsabit804 4 жыл бұрын
God forbid I be stuck on a deserted island with a cat rolling dice over the last banana.
@icanrememberthis
@icanrememberthis 9 жыл бұрын
This was fun
@Hoioidoi
@Hoioidoi 7 жыл бұрын
player 2 also wins because each side is slightly heavier or lighter than another, like 6 is the lightest because it has 6 holes, unlike 1 has only 1 hole
@NPCrash
@NPCrash 4 жыл бұрын
If they just used 1 die, they'd both have 50% chance of winning. If they added the rule that player 1 wins if both dice are 5s or 6s, it's also equal.
@samraarshad1434
@samraarshad1434 3 жыл бұрын
Lol the turtle in the end
@ericzheng6491
@ericzheng6491 7 жыл бұрын
or... for player 1 to win you need both numbers =
@AlvinLee007
@AlvinLee007 8 жыл бұрын
I wish I had seen this video when I was studying probability in college.
@trustinjesus1119
@trustinjesus1119 8 жыл бұрын
+Alvin Lee I'm glad I didn't have too much college, I've been learning from this guy: dfpolis R-9 Have Reason Will Travel. That's his 13th response video to naturalists who learned that the brain produces the mind (they learned it in college), but that doesn't make any sense, we are aware before our brain could process awareness!
@ratpyramid
@ratpyramid 4 жыл бұрын
Plot twist... The cat wins and eats the banana. But, alas it is allergic and dies. The girl knew this all along and make stew out of the cat
@amymacefield3114
@amymacefield3114 7 жыл бұрын
2 things 1. why a banana 2. just split the blooming banana
@26dragonrider
@26dragonrider 8 жыл бұрын
So for there to be a 1, 2, 3 or 4 on both roles its 4/6 x 4/6 or 16/36 So shouldn't the chance of rolling a 5 or 6 both times be 2/6 x 2/6 or 4/36 and hence be less probable?
@jaapr6928
@jaapr6928 8 жыл бұрын
+Darnok 26 You don't have to roll 2 high numbers. Only the highest number should be greater than 5.
@MasterDBChief
@MasterDBChief 8 жыл бұрын
+Darnok 26 2/6 x 2/6 would be correct IF both of the dice had to be a 5 or a 6 in order for player two to win. But because player two only needs 1 of the 2 dice to be a 5 or a 6, and the other one can be any number, it isn't 2/6 x 2/6.
@morganthomas2242
@morganthomas2242 5 жыл бұрын
Supposing the chance change if one player were to learn how to intuitively spin a die to get their desired outcome Fatalistic outcome obervance, all else is character
@SADCOCK1970
@SADCOCK1970 7 жыл бұрын
it's a cat, dude! Forget the complex math and roast the kitty for burgers with banana desert.
@AustinPage08
@AustinPage08 7 жыл бұрын
Here's the way I look at: Player one wins if a 5 or a 6 doesn't show on either dice The odds of a 5 or 6 NOT being on the dice is 2/3 Since there are two dice you have to multiply 2/3 by 2/3. That is the odds of neither a 5 nor 6 showing on either die. So the odds of the first player winning is 2/3 x 2/3 = 4/9 = 0.44 And the odds of the second player winning is 5/9 = 0.56
@jier9904
@jier9904 7 жыл бұрын
why the hell are you stranded on an island with a giant cat that can play dice and like banana...
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