Question: probability _. You are participating in a game show. When you press a button, a machine randomly selects a real number, x, in a predetermined

probability

_. You are participating in a game show. When you press a button, a machine randomly selects a real number, x, in a predetermined interval with all selections being equally probable. After the number x is selected, the probability of receiving a prize is described as Y~Exp (/1 = x). Provided that the predetermined interval is [1, 2], calculate the expected value and variance of Y

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