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- Mathematical Statistics (MS)
X, be p. the independent discrete (0,1) random variables each with probability density function f let the binary random variable x have pdf f(x) = p"(1 p) for x
X, be p. The independent discrete (0,1) random variables each with probability density function f Let the binary random variable X have pdf f(x) = p"(1 P) for x = 0,1 nction Let x fx The values of B are b 0, .., n and represent the number of successes (i.e., X ance 1 of B random variable B = X, + X, + + X, has a binomial distribution with parameters n and = 1) inn independent trials of an experiment, each with probability p of success. Calculate varianee using the rules of expected values and variances. (B) np(1+ p) (A) np (C) np(1 p) (D) None of the above
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Alka gupta![best-answer]()
it's ans is C variance of binomial distribution is npq or np(1-p)