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help me with this one 4. The random variable X has the following probability mus function: _ _ _1-P P[X _ 1]- 2 1 P[X

help me with this one

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4. The random variable X has the following probability mus function: _ _ _1-P P[X _ 1]- 2 1 P[X = 01= _ J.' P[X _ 112. The parameter 3!; satises 0 S p 5 1. 2:. Find the expected value and variance of X. b. Suppose a random sample of size n = 200 is drawn from this distribution. If p = 1/2, approximate the probability that 2,593: X.- 2 1

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