What are the parameters

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Twelve IEOR students have gone on a. mid-semester vacation to Mexico. They have to go through US customs on their return, where of?cers randomly check visitors for carrying prohibited items such as Cuban cigars. On average they select 2% of the people. Suppose that we model the number of checked students X by a binomial distribution.

a) What are the parameters? What is the probability mass function of X?

b) The students have agreed that everybody will wait if at least two students receive the thorough check. What is the probability that everybody will wait?

c) What is the expected number of checked LEOR students?

Reference no: EM132851886

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