See all my videos at www.zstatistics.com/videos/ 0:00 Introduction 0:27 Definition 5:09 Mean vs Median 8:17 Challenge Question Series music by Purdy. purdy.bandcamp.com/ Song: 3 Friends to the Stars
Пікірлер: 44
@armaosk5 жыл бұрын
Hi Justin. Fun question there at the end. I came up with the following set of numbers: 0, 1, 2, 3, 3, 10 mean = (0+1+2+3+3+10)/6 = 19/6 = 3,17 mode = 3 median = (2+3)/2 = 2.5 I think this is the minimum set with median < mode < mean.
@pipertripp2 жыл бұрын
that's what I came up with too
@agrajgaur57884 ай бұрын
exactly what I came up with!
@priyaark4 жыл бұрын
1, 1, 2, 2, 3, 3, 3, 10 Median - 2.5 Mode - 3 Mean - 3.125
@japhethchew16043 жыл бұрын
I like how you "tempt" people to try out the exercise :)
@SanjayFGeorge3 жыл бұрын
I'm thinking of incomes in a banana republic. Comrade El Presidente has a huge salary pushing the mean way up into the Stratosphere ... All govt employees have the same fixed salary giving a high frequency for the mode and then a huge swathe of poor with various meagre salaries pulling the median below the mode ...
@aalaptube2 жыл бұрын
For continuous observations (as opposed to discrete observations), the chance of a particular observation repeating is rare, though the frequency of the class interval in which it lies, may be very high. If I increase the class interval to the whole range of observations, it will become flat (horizontal). So this means: 1) Class intervals must be used, yes? 2) If so, what is the best size of class intervals for n observations? How are standard deviation curves drawn, what is their class intervals?
@zukofire64242 жыл бұрын
I love your voice!
@blackheart23955 жыл бұрын
Thank you for amazing videos. I have a doubt that finally, with a distribution where all samples have the same frequency, let's say 1, each sample can be a MODE?
@MDMAx2 жыл бұрын
Sounds like a square distribution. Measuring a mode for it has no meaning. As a statistician it's your job to pick the most representative data to show the reader.
@AnilPatel-fs1kt4 жыл бұрын
Brilliant - I always found statistics confusing, but your explanations are very clear, Thank you.
@bichithbalan54243 жыл бұрын
Which measure of location will be suitable to compare, a. Heights of students in two classes, b. Size of agricultural holding, c. Average sales for various years, d. Intelligence of students, e. Per capita income in several countries, why?
@ashimdhungana79665 жыл бұрын
Thank you
@kundanshekhawat69294 жыл бұрын
Great Learning.. Thanks
@arfanmansoor67074 жыл бұрын
Here is another set of number: 0,1,2,3,4,4,9,10 Mean: 4.125 Mode: 4 Median: 3.5
@saikatpaul19 Жыл бұрын
Coincidently i got the same value bro😁😁
@pb487113 жыл бұрын
Flip the tail of an asymmetric distribution.
@sainathm36 Жыл бұрын
you confused me at 3:44 you said mode is calculated by selecting 2 matching numbers and now here you are taking mode as highest frequency? how also how you calculated median and mean fully confused
@RajeshwariThengil2 ай бұрын
Datapoint = [1,5,5,5,3,3,5,50,2] Mode = 5, Median = average of 3 and 5 which is 4, Mean = 8.2. Median
@lordrickalinaitwe35992 ай бұрын
50 is not an interger between 0&10
@St.Karelis Жыл бұрын
We asked 10 people, how many ice creams they wanna have for free. 1 person answered 1, 2 persons answered 2, 2 persons answered 3, 3 persons answered 4, 1 person answered 5 and 1 person answered 30! 1+2+2+3+3+4+4+4+5+30 median: 3,5 (between 3 and 4) mode: 4 (the most wanted choice) mean: 5,8 (the average demand)
@fraggodgaming4433 Жыл бұрын
1,2,3,4,4,10
@lifetech41464 ай бұрын
Quite too late for this but , here is some values 6 6 5 6 10 median = 5 mode = 6 mean = 6.6
@ebtisamhussien7389 Жыл бұрын
My set is 2 2 1 10 The mean is 3.75 The mode is 2 The median is 1 So the mean is greater than mode which is greater than the median
@user-hv3oy8np1g Жыл бұрын
Your median is (2 + 2) / 2 = 2
@guillemguigocorominas28984 жыл бұрын
0, 0, 1, 1, 2, 2, 2, 9 median = 1.5 mode = 2 mean = 2.125
@nethravathibg1746 Жыл бұрын
for census example, why its weighted mean is calculated and not the mean calculation?
@26nafisbinazad939 ай бұрын
because of the frequencies involved. The example asked to derive the mean number of children. Btw can you tell me, why the median is two here?
@allisonal8 ай бұрын
If you wanted to do the calculation without weighting, you would need to take the mean over all 5 million numbers. Not a problem for computers, but would be practically impossible using pencil and paper. Weighting lets us calculate the mean from a much more compact data format.
@uguumurkhosbayar1683 Жыл бұрын
3, 3, 3, 4, 4, 10
@agrajgaur57884 ай бұрын
0, 1, 2, 3, 3, 10
@aham_harshit_dwivedi Жыл бұрын
2,3,4,3,1
@juwaldtsieberhagen11203 жыл бұрын
so how I calculated it was: credits carry more value than percent because you can sore high marks on a low credit level and still fail because it is weighted low. hence i worked out the maximum amount of credits that she can score per test. if 65% gives you 4 credits how much would 100% give you. with only one variable you can work it out. 65/100 *4/x this gives you 6.1 but as with credits you either get it or you don't so you have to round it up to the following number making it 7. calculate each maximum credit score giving you 28 possible credits. take the amount of credits she scored 20 and divided by max amount of credits times a 100. gives you 71.4%. so she is on average able to score 71.4% of the possible credits no matter the test difficulty or size.
@user-sm6tk5vv3d9 ай бұрын
(7,8,8)---> this is the nearest answer
@Shivangsharmaaaaaaa11 ай бұрын
4,4,3,5,6 median is 3 mode is 4 mean is 4.4
@keshavverma8246 Жыл бұрын
1,1,2,0,10,1,1 here mode is 1 median Is 0 and mean is 2.28