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A random variable X has binomial distribution with n = 10 and p = 0.3 then variance of X is:_____________________?

/ Binomial And Hyper-geometric Probability Mcqs, Statistics Mcqs / By
A random variable X has binomial distribution with n = 10 and p = 0.3 then variance of X is:_____________________?

A. 10
B. 12
C. 2.1
D. 21
E. None