Four rotten oranges are accidently mixed with 16 good ones . three oranges are drawn at random from the mixed lot . let X be the no of rotten oranges drawn . Find mean and variance of X

CBSE Class 12-science Answered

Four rotten oranges are accidently mixed with 16 good ones . three oranges are drawn at random from the mixed lot . let X be the no of rotten oranges drawn . Find mean and variance of X

Asked by haroonrashidgkp | 07 Nov, 2018, 09:16: PM

Expert Answer

Accroding to the question,

X can take values 0, 1, 2, 3

Also, total number of eggs = 4 + 16 = 20

Hence the probability distribution is

Now you can find Mean and variance of X.

Answered by Sneha shidid | 16 Nov, 2018, 11:05: AM

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