Question: Suppose that X has range {2, 0, 2} and probability function Examine whether Chebychevs inequality is exact, i.e. it holds as an equality in this

Suppose that X has range {−2, 0, 2} and probability function1/8, x=-2, f(x) = 3/4, x = 0, 1/8, x = 2.

Examine whether Chebychev’s inequality is exact, i.e. it holds as an equality in this case.

1/8, x=-2, f(x) = 3/4, x = 0, 1/8, x = 2.

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