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Statistics and probability A discrete random variable, W, takes integer values from -2. W has probability mass function given by 1 w+3 P(W = w):

Statistics and probability

A discrete random variable, W, takes integer values from -2. W has probability mass function given by 1 \\w+3 P(W = w): 2 , W = 2, -1, 0, 1, 2, 3, . . . 0 otherwise Calculate the expected value of W, E[W. Give your answer to 2 decimal places. -1

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