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OpenStudy (anonymous):
help please! Which of the following is a valid probability distribution for a discrete random variable? Check all that apply. A. -1/2,-1/3,-1/4,-1/5,137/60 B. 1/6/,1/5,1/4,1/3 C.1/12.1/12.1/12.1/12,1/6,1/12,1/12, 1/12,1/12,1/6 D.1/5,1/5,1/5,1/5,1/5 E.1/2,1/4,1/8,1/16,1/32,1/64,1/128, 1/128
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