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Discussion Allowed Question: Consider the following probability distribution of a random variable B. Compute the variance of B. B 0 400 P(B) 0.7 0.3 A.

Discussion Allowed Question: Consider the following probability distribution of a random variable B. Compute the variance of B. B 0 400 P(B) 0.7 0.3 A. 120 E(B) = 0*(0.7)+400*(0.3) = 120 B. 183.3 C. 33600 D. 48000 E. None of the above

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