Discrete random variable with possible values
Let X be a discrete random variable with possible values x = ?1,0,1,2 and probability function f(x) = kx3 + 0.15 for x = ?1,0,1,2.
(a) Find the value of k.
(b) Find: f(0) and F(0); f(1.5) and F(1.5).
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