Question: (a) The function is not a valid probability density function. Why not? (b) The function F(x) = 1 + sin(x) is not a valid cumulative

(a) The function (a) The function . is not a valid probability densis not a valid probability density function. Why not?

(b) The function F(x) = 1 + sin(x) is not a valid cumulative distribution function. Why not?

1 = { 0 0, f(x) = 1.5-2|x|, 1 x 1 O.W.

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