Standard Deviation

[@armsdragon05]

"It's not scary at all, it just means you have to do a lot of work." That's the scary part

[@YakRuski]

Nailed it

[@bighands69]

Practise it 20 times and it will become easy.

[@legendthenoah1229]

bighands69 JEWLY ANDERS CONFIRMED! ( I DON'T CARE IF I SPELLED IT WRONG!)

[@vasanthakumari9627]

by

[@PLP0321]

Lol

[@MorticiaObscurum]

I like how most statistics video always say "don't be scared". It's kinda soothing, in a way.

[@edsknife]

Yeah just like how yelling "RELAX" in someone's face gets them to relax

[@jean-michelgonet9483]

Like the doctors, when they say "It won't hurt a bit"

[@josephjaison321]

its because in math's statistics is easy. but for us its hard..

[@der1658]

It's like a biblical angel trying to approach you without spooking you

[@calculatorcake6209]

sometimes at night i cry myself to sleep

[@ayylmao2710]

+calculator cake i try to drink paint to easy the pain i have with maths

[@calculatorcake6209]

often times i will try to also drink away the pain....with bleach

[@tsubameakiyama231]

Sometimes it's not enough and u just have to take bleach into the exam in a water bottle but make sure it's clear bleach so they think it's water 👌

[@josephkuforiji9407]

Same

[@carson4356]

#the AP bio experience.

[@crouchingpantherhiddendrag586]

Mr. Andersen, you saved my life in 15 minutes with this tutorial! If I were going to have more children I would not hesitate to name them after you. I looked at this twice, and was able to solve the second problem and get it right! I looked countless other videos and all I got was crickets. The way you explained it will be easier to understand when testing time comes around. I have always had a fear of math, but I have never felt more confident since finding your lectures. I am 46, and I have 5 classes left before I graduate with a degree in Health Information Technology next spring. Whoever said you can't teach an old dog new tricks was severely incorrect. Once again, I thank you and bow in your direction!

[@kazikoy]

damn bruh

[@SkylabBeats]

Officer, the simp is right here

[@Insomnia_Animations]

@@SkylabBeats they were just being polite why is this considered simping

[@ericyong3632]

Well this is one of the best videos out there but for people who want direct direct steps here ya go: Step 1: Find the mean in your data. (Add all up, Divide by how many values) Step 2: Subtract the mean from each value of your data, and square the answer. Do this for all values Step 3: Add up all results from new values, and divide by how many values (Should be same No. of values from step 1) Step 4: Square root the answer you got from step 3. The answer you get is the standard deviation

[@teachmeee]

Dude you could seriously teach ALLLLL OF MY MATH CLASSES!!! It took you 7 minutes to teach something that took 9 weeks to learn.

[@seeinbubbles]

I am taking a statistics class right now online and find that it is a little difficult for me to get a handle on, so this video helped me out so much by watching someone actually did the an example of what I need to do. I am a visual learning so this helped so much. Thanks

[@sammiepaws3175]

Hey! I've been watching your videos for all of my chemistry and math courses for the past 4 years and I just want to thank you from the bottom of my heart for making these videos! Knowledge is power and you are giving that to everyone who seeks out help through youtube. You are wonderful. Thank you so much!

[@seventhwave87]

oh my goodness. I've spent so much time trying to understand this concept and Mr Andersen explains it in exactly one minute and eleven seconds. Kudos to you Mr Andersen. Give this man a gold star.

[@zipzap6434]

pov: you're a sophomore who blindly chose AP Biology as your class and you are now deeply regretting your decision

[@PenguinInVagas]

POV you’re a junior in the same boat 😢 how’s your junior year going

[@dolly2644]

POV freshman 🤚

[@misterdonnatavious2047]

@@dolly2644honors bio😢

[@tfkalldaway]

Seriously? Why couldn't my chem teacher just explain it to me like this. THANK YOU!

[@Namiqueue]

Exactly! The teachers are dumb! ))))

[@zakiahmed6655]

oh well this is for my bio

[@shokofakarimi839]

I love how clear, relaxed and simple you explain. I used to always watch your vids when I was in high school and now I m doing my first year of Uni, still watching your vids, Thank you X

[@RobertMStFleur]

Teacher, you have done a great job, don't forget to use parenthesis before squaring the numbers. For example, if you have negative 2 with an exponent 2 without a parenthesis, the answer is negative four (-4). On the other hand, if you use a parenthesis (-2) with an exponent 2, the answer is positive 4.

[@slavoie]

Robert is right. Those are two different notations that produce different results. " -2 ² " is equivalent to " (-1) * (2)² " which is not the same thing as " (-2) ² ".

[@jamesgalante7967]

Im pretty sure everyone who is studying standard deviation would know this

[@TheRealHawkeye]

I am a graduate student in aerospace science. For the first time in my life, we had to calculate the standard deviation on some figures. I am no stranger to math, but I am certainly a neophyte when it comes to statistics. I had little by way of instruction vis-a-vis standard deviation calculations. Your presentation was excellent! It helped me and my team with what we needed. I thank you very much.

[@MarvinsGarage22]

Thank you Mr. Anderson. It doesn't matter how many times throughout your life that you learn this. If you don't use it you lose it. Thank you for teaching it to me again!!!!

[@jackforbes3011]

Just wanted to say thanks. I'm in a stats class now and the professor explained the process, but I couldn't get the answers. I think I realized that I wasn't dividing by the full value of N or n-1 based on the instructions in the question. I enjoyed being able to do the equation by hand and then see the answer; it helped me track through my steps and see where I went wrong. Appreciate this!

[@hirajabbar2136]

Hello Mr. Anderson. I used to watch your videos when I was in intermediate around 6 years ago or maybe more than that. And now, after 6 years here I am again doing my MS n you saved me again. Thanks

[@SAM1057368]

For a person with a Linguistics background, your explanation was awesome. Very simple and clear and you also combined both formulae with an Excel work. I love that and thanks a million again! Now, I understand what it means Standard Deviation is the Square Root of the Variance :)

[@marcobagut]

Finally someone who knows how to explain this: rationale and calculation. Great!

[@CMVB92]

I might as well skip all my classes and watch these video's in stead. Saves so much time and energy! Thank you!

[@blackwolf4417]

Thank you Mr.Anderson for presenting this nice informations

[@Bozemanscience1]

Chalak Mariwany You are very welcome. I'm especially happy to hear that this video is helpful because standard deviation is a very important topic.

[@tieler151]

+Bozeman Science can you do a stand deviation video to explain this formula for standard deviation that we are learning in school o=(x1-u)2 +(x2-u)2+...+(xn-u)2/N?

[@blackwolf4417]

it was very benificial to me..thank you.

[@NothingButCharLee]

Learnt more in 10 minutes watching the first 6 minutes of this video and doing the example than I have in the past three lessons at my school with my inadequate teacher. Three cheers for the information age!

[@lennoxpoveda4151]

I been watching your videos for the pass 3 months, and on Monday I have the AP Bio test and i feel pretty confident, appreacite,. You Raw!!!!!!!!!!!!!!!!!!!

[@YakRuski]

This is a bloody lifesaver. I flunked my Algebra class this year so now I had to take credit recovery summer school. And man, tomorrow is my final exam. Thanks for the save dude!

[@Mr00000111]

I just cannot describe how much I appreciate and adore you Sir Andersen! you are a great man!

[@foziajfr]

I'm late to say this, but anyways Bozeman Science has been my favorite video tutor to remember old topics and learn new concepts since high school and now college.

[@florinburian7291]

This is a gem of an explanation. I wish teachers were like you

[@mrmurtagh11]

Hu... I was sceptical, however after watching it became apparent that you are one of a rare breed. A really smart people who can teach without being patronising or condescending.....

[@ericyong3632]

+Callum Murtagh i hate to be THAT ONE GUY but um its "skeptical" and um grammatically it should be A really smart PERSON Its "patronizing" um yeah

[@mrmurtagh11]

+Eric Yong Are you American? In England, it is spelled "sceptical". Google it. It is the same story for patronising, in England, it is actually spelled "patronising". Google it, you are using US English for your spellings, I am using English English for my spellings. As regards "A really smart people", that is just a typo. um yeah

[@ericyong3632]

+Callum Murtagh o sorry man lol right i forgot to consider english english spellings haha. wwoops my bad

[@Tj1991ification]

This is one of the best standard deviation videos I have watched. You are a life saver!

[@LeterniteBelle]

you saved my college career

[@fayyazahmed7126]

Superb: what i was unable to learn in four months have learned in 7.50 minutes. what an easy way of explaining.

[@kyleray_music]

Your videos are literally the only reason I'm passing AP Bio

[@elroystevens78]

This is brilliant example even doing in excel great work. St Dev was only one part of calculation and got stuck for about 45 minutes thank you Bozemanbiology

[@789armygirl]

You're awesome. 2021 and your video is still helping people. This equation showed up randomly in my online microbiology homework. Had never seen this before, but I'm able to complete it thanks to you. 👏😊

[@randischmidling4483]

I've been a fan of yours since I've started taking classes online! I think they would benefit from referring podcasts like yours to guide us through our online learning experience! You should try it! I'm in my fourth week and NOW I finally understand how to do standard deviations... Pretty sad on my end, but kudos to you for the AMAZING learning lessons. Not to mention their short, easy, and funny! :o) THANK YOU!!

[@0oumaima486]

Hello teacher i would love to say thank you that you've helped me by you're videos 10 years ago to succeed and now i have a master degree in Quality so thank you so much

[@alexmontes1391]

this was a phenomenal representation on standard deviation! thank you!

[@lac.2558]

Thank you! My professor in grad school assigned your video for an assignment and this was a topic I was REALLY struggling with even after having a course of research and statistics >.< thanks to your video I feel so much more confident going forward in interpreting data

[@Andrew-fq8oy]

I dont know what I would have done without this video

[@kagamer21]

Youre the man Mr. Anderson. Thank you for teaching me so much for years now

[@DynamicDurge]

You da man Mr. Anderson

[@stephenthomas6173]

How ya been after 6 years

[@DynamicDurge]

@@stephenthomas6173 not having to worry about this for the past 6 years has definitely been nice. Graduated college and have a job now lol, time flies 😅

[@stephenthomas6173]

@@DynamicDurge Damnnnn I’m just starting to learn bout this

[@stephenthomas6173]

@@DynamicDurge congrats on graduating though even though I’m late

[@DynamicDurge]

@@stephenthomas6173 appreciate it! Definitely light at the end of the tunnel

[@mamacita314]

I love you!! My Ti 83 died and I was freaking out about that scary equation, but you simplified it and my heart started back up. Thanks for this video!!!! I can't use enough exclamation points!!!!!! lol

[@Manny123-y3j]

Thank you for this. I am taking some upper division stat courses after about 9 years off from school, and even though something like this video is super simple, it is very helpful to go through it and refresh my memory. Also, You did a great job speaking clearly and explaining things clearly, so good job.

[@beckywalton359]

Mr Andersen, you rock. I always found stats impenetrable but your videos break things down so well. Thanks!

[@ericbays4123]

THANK YOU for being the only source to have made sense of this for me.

[@xrain90]

Came here to relearn the standard deviation, ended up learning how to use an excel sheet. Thank you!

[@goonieslothnope7723]

I'm a British pupil, I'm year 9 (equivalent to grade 8 in America) and I soveld this. Thanks Sir.

[@cu99460]

Your my favourite online lecturer dude! Keep up the great work!

[@cindyxu1995]

This explanation is so much better than my teacher's, this video is life saving

[@hudsonmckie]

This was really helpful! Got standard deviation so quickly with this, keep up the good work!

[@dubstepgirl28]

"Don't be scared of the Summation Sign, it just means you have a lot of work." But I'm scared of work....

[@777vegasnites]

The information is presented very nicely here - both "on-paper" technique combined with spreadsheet data entry and formula usage.

[@iRonM4n1991]

best explanation ever!!! i totally understood it i was getting so scared of how to do this standard deviation thanks for the explanation

[@lissettmanduley4654]

Thank you for being so calm and making it so not complicated!!!!

[@Anjali-Mo0n1e]

This makes so much more sense now thank you so much! Im taking AP bio as a junior so this was very confusing at first but you explained it perfectly! thank youuu!

[@Mefstar1]

Omg thank you so much. I have a GCSE Statistics exam tomorrow and I couldn't remember how to do standard deviation!!!

[@eleonoranocentini4497]

Thank you so much! I didn't understand it before and I soon have an exam , you saved my day!

[@_HarryFrench_]

BOSS, way better than any of my teachers, thanks

[@BeautybyRachel]

you made this easy unlike a lot of the other youtube vids, thank you

[@OMGmyFACE]

Wow, thank you. The first 6 minutes of this taught me more than an entire lecture and recitation on the subject I had previously. Way to go, academia standards, eh?

[@jessegarcia3700]

Thanks!! Helping me through a grad program in consumer psychology at USC. Great video, huge help, thanks for keeping it simple!

[@afafkhan2826]

Thanks for the video!! Learning from you in 2019 even though you uploaded this in 2012

[@user-pp9sj4jg4t]

I really appreciate this video it was so simple and easy to understand. My teacher made it so difficult in class no one understood.Thank you

[@systine.]

The intro song is amazing! I love hearing it every time.

[@filu7652]

Best explanation of Standard Deviation! I have a chance at passing my exam tomorrow!! Thank you so much!! :)

[@mollyfisher4308]

You made it so simple and easy to understand. Thank you, you wonderful man.

[@pir8grl08]

Thank you Mr. Anderson! I looked at other videos about the same subject, but the teachers in those videos were using language I couldn't comprehend. There is a video included in the software we are using for the class, but the lady merely showed the TI-83 route. It is a nice short cut to check myself, but I wanted to be able to show my work. I see you have videos on other subjects as well, therefore I shall subscribe and recommend you.

[@ellal.1918]

I know this video is 4 years old... But thank you!!! This video made it so clear to me! Big help. Thanks again :)

[@Universe.444]

i finally got it. you made it so simple. i worked out the problem and got it right. thanks a million.

[@danward1070]

so simple and easy if they ask my how to calculate standard deviation in my Biology test then I will acquire some easy marks thanks to this guy

[@Armando04854]

Just finished prepping for my college stats test tomorrow! Thank you a bunch! (Your 6 minute explanation of Standard Deviation was better then my professors 50 minute explanation xD)

[@redxap2991]

So how did the exam go XD

[@MsPerva]

Thanks but why did you use "n-1" instead of "N"? 🌹

[@sayantiacharyya2108]

When sample size is less than 30, the formula with n-1 is used.. If the sample size is more than 30,only n is used.

[@forgedwithsteel]

@@sayantiacharyya2108 why though?

[@oscarmantecon5354]

@@forgedwithsteel My professor said if there's 30 chairs but you're sitting in a chair, then at that moment there's only 29 other chairs you can go sit at. So degrees of freedom is (n-1), hence how many chairs are free. If more than 30 chairs, n-1 would skew the data and make it inaccurate, hence for bigger populations, n-1 isn't used. Hope this helps :D.

[@arickettsf16]

If only my professor actually explained what standard deviation was like this man...

[@Juspeachy13]

Thank you so much!!! My Statistics professor confused the hell out of me. You made it much more clear

[@AdeelKhan1]

Standard deviation: The 5 step process. 1. Figure out what the mean/average (will use the word mean going forward) is from the given data set. 2. Subtract each entity in the data set 'from the mean' 3. For each one of the resultant entities, apply square. 4. Add up the numbers and divide again by the total number of instances. (Figure out the mean one more time) 5. When you get the mean again, apply square root. --> And that's your 'standard deviation' Important to note: There are two types of standard deviation --> libweb.surrey.ac.uk/library/skills/Number%20Skills%20Leicester/page_19.htm So, for the entirety of the dataset you divide by the number of entities. For a sample dataset within a given dataset, --> Total number of entities minus 1. (See link)

[@raziburrahman6640]

Awesome. I checked many videos before. But here Very easy to understand this.

[@ryonz8195]

"Don't be scared of it, it just mean you have to do a lot of work"... Love the video tho, really helped me out :)

[@chungusv7995]

I didnt watch this video and I can tell this nerd explains it more complicated than needed to be

[@keiths.7952]

I love this guy keep making videos for struggleing math students like me and to you haters who punched the dislike you shouldn't blame him for you not understanding

[@anthonyflores2380]

Thanks man you really helped me understand standard deviation better then my teacher.

[@oniquecarmelmocha]

This was very help thank you... never understood how to do it by hand until now... thanks again...

[@jeffwilson8563]

Concise and clear, thank you Mr. Anderson.

[@sanktod3]

Omg. Thank you very much so helpful. I tried asking the professor and she said that I should know how to do it already

[@Zoeyelizanelson]

very helpful for my bio lab exam!!!! Thank you you're a life saver.

[@jonathanmiddleton119]

Thank you SO SO much... This video might have saved me from summer school...

[@rizzyspyro]

thanks mr. andersen, my professor has a wicked korean accent and i had to go home and run to you for help lol thanks again!

[@scientist100]

I will use Excel and save time, thanks for explaining what it is and explaining the calculation behind it.

[@freybio]

Fire! My class loved this! You are my hero:-)

[@KitKat0708]

thank you, this makes so much more since than my professor

[@euanator301]

Thank you, first video i found that broke down the actual equation!!!

[@Lip22Gloss]

Thank you so much, Mr. Andrson! You are my greatest hero! You always explain things so simply and well, & I thank you for that. :)

[@Sofineeiful]

Thank you so much!!! My chem teacher never explained how to use this formula in class!

[@deepocean2214]

Thank you so much!! I have been studying this for months and I just learned it in 10 min. thanks to you :)

[@justincole3610]

Thanks for the description! Very easy to follow

[@lilin5589]

That was so helpful. Thanks. Best video on standard deviation ever

[@andrewdaw6269]

Mr Anderson kicks ass! Probably on a daily basis

[@dr.donitam.lester1947]

You are soooo good at this! It's scary for real. I am shaking with anxiety. You make it seem so simple. Thank you.)

[@maryamomar2510]

thank you Mr. Andersen! You are the best!!!

[@cdee12120]

I truly appreciate every lesson I have learned from you. Thank you so much.

[@Zenaune_Hitjii]

Thank you so much Mr. Anderson for this awesome video. I finally understand what standard deviation is and how to calculate It. You helped me a great deal. Thank you.