Question 521787
You order twelve burritos to go from a Mexican restaurant, five with hot peppers and seven without. However, the restaurant forgot to label them. If you pick three burritos at random,
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Binomial Problem with n = 3 and p(hot) = 5/12 and p(not hot) = 7/12
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a. find the probability that at least one has hot peppers.
P(>=1 hot pepper) = 1 - P(no hot peppers) = 1 -(7/12)^3 = 0.8015
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b.find the probability that exactly two have hot peppers.
P(x=2) = 3C2(5/12)^2*(7/12) = 0.3038
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c. find the probability that none has hot peppers.
P(x = 0) = 3C0(5/12)^0*(7/12)^3 = 0.1985
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Cheers,
Stan H.
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