There are 2 cardboard boxes. Each of them has 6 tiles numbered as 1,1,2,3,3,4. Find the variance of the distribution of the expected values of getting a total of 2,3,4,5,6,7 and 8 when one picks two tiles at a single event and this event repeats for 36 times assuming the picked tiles are replaced on every repitition.

amygdaleon305 Jun 9, 2021

#1**+1 **

I really do not know but this is my best guess.

the variance is down the bottom of the 2nd diagram.

https://www.calculatorsoup.com/calculators/statistics/statistics.php

Melody Jun 11, 2021

#2**0 **

Yes its absolutely right, apart from the fact that I got the mean as 4.8 and when I solved it with this value I got the variance as 2.46. But I guess that minute difference can be ignored right?

amygdaleon305
Jun 11, 2021