Question: (a) Use the relations in Section 19.4 for continuous variables to determine the expected value and variance for the distribution of DM in Problem 19.10.

(a) Use the relations in Section 19.4 for continuous variables to determine the expected value and variance for the distribution of DM in Problem 19.10.

f (DM) = 3(1 – DM)2 0 ≤ DM ≤ 1

(b) Determine the probability that DM is within 2 standard deviations of the expected value. Use the relation in Problem.

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