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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?
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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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