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Binomial distribution with parameters

Suppose the number of radios in a household has a binomial distribution with parameters n = 12, and p = 80 %. Find the probability of a household having: (a) 7 or 9 radios (b) 7 or fewer radios (c) 7 or more radios (d) fewer than 9 radios (e) more than 7 radios

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