~ 2. Let X Exponential(\ variable with PDF = = ½), let Y~ Uniform(a = 1, b = 3), and let Z be the random. fz(t) = {2/12 √2/t2 t≥1, t< 1. These have something in common: E[X] = E[Y] = E[Z] = 2. For each random variable, find the probability that it's less than this expected value. 3. Find the variance of each random variable in question 2.

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