Question: A discrete random variable X, where X {2, 3, 4, 5}, is such that P(X = x) = (b x) 2 /30 a. Calculate

A discrete random variable X, where X ∈{2, 3, 4, 5}, is such that P(X = x) = (b – x)2/30

a. Calculate the two possible values of b.

b. Hence, find P(2 < X < 5).

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