Let X be a discrete random variable with PGF P(s) = a. Find the probability distribution of X. b. Derive the mean and variance of X using its PGF.

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Q: 7. Which of the following is TWO-TAILED? Ο Ha: μ< 16. Ho: μ<16 Ο Ha: μ# 16 O Ho: µ = 16

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