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Mathematics 9 Online
OpenStudy (anonymous):

Of police academy applicants, only 25% will pass all the examinations. Suppose that 12 successful candidates are needed. What is the probability that, by examining 20 candidates, the academy finds all of the 12 persons needed?

OpenStudy (anonymous):

12/20=.6 so that is 60%. But, .25*20=5 So they will only find 5 people. So, no. They will not find 12 people.

OpenStudy (anonymous):

Thank you!!

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