Question: let X be a discrete random variable whose probability mass function is given in thefollowing: x=-2, -1, 0, 1, 2 p=0.1, 0.2, 0.3, 0.2, 0.2

let X be a discrete random variable whose probability mass function is given in thefollowing: x=-2, -1, 0, 1, 2 p=0.1, 0.2, 0.3, 0.2, 0.2 1.Find E ( X ) and var ( X ) and E( X2). 2.Find the probability mass function for X2. Then find E( X2) using the probability mass function for X2 given in 2. Is it equal to E( X2)found in 1? Find the probability P(0.2< X <1.7)

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