Question: 4. (20 pts.) Suppose that the random variable Y represents the amount of time (in seconds) that a motorist stops at a stop sign before

4. (20 pts.) Suppose that the random variable Y represents the amount of time (in seconds) that a motorist stops at a stop sign before proceeding through then intersection. Suppose also that the moment-generating function for Y is given by m(t) = Use the moment-generating function to find the expected value and variance for the random variable Y

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