Asked Nov 13, 2019

An urn contains five chips, two red and three white. Suppose two are drawn out at random, without replacement. Let X denote the number of red chips in the sample. find Var(X).


Expert Answer

Step 1

If the sampling is done with replacement then X follows binomial distribution with parameters n = 2 and p = 2/3 and pdf is shown below:

Step 2

So, the mean of X...


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