A random variable X has probability mass function given by P(X = x) = 1/5^10binom10x2^x3^10-x; x = 0, 1, 2, ..., 10. The mean and variance of X are respectively:

Q4Section I (Objective (Q1–Q80))4 of 80

Distribution Theory — mean and variance of a disguised binomial pmf

A random variable X has probability mass function given by $P(X = x) = \frac{1}{5^{10}}\binom{10}{x}2^{x}3^{10-x}$ ; $x = 0, 1, 2, ..., 10$ . The mean and variance of X are respectively:

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