A random variable X follows a Normal distribution with mean u = 40.8 and standard deviation o = 6.9. Which of the following gives th expectation E[X²]? O A. 1712.25 O B. 1664.64 O C. 47.61 O D. 281.52 O E. Insufficient information to calculate E(X^2)

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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A random variable X follows a Normal distribution with mean u = 40.8 and standard deviation o = 6.9. Which of the following gives the
expectation E[X²]?
O A. 1712.25
O B. 1664.64
O C. 47.61
O D. 281.52
O E. Insufficient information to calculate E(X^2)
Transcribed Image Text:A random variable X follows a Normal distribution with mean u = 40.8 and standard deviation o = 6.9. Which of the following gives the expectation E[X²]? O A. 1712.25 O B. 1664.64 O C. 47.61 O D. 281.52 O E. Insufficient information to calculate E(X^2)
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