Ex1: Suppose that f(x)=e* for x>0 Determine the following: a/P(X=1),P(X=2 or X = 3) b/ P(X > 2), P(1≤ x ≤ln 5) c/ Mean and variance of X d/ The cumulative function F(x)

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Q: then the value of variance of X is

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Q: where is the graphical estimation method (by hand)

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