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On a particular day, 112 of 280 passengers on a particular DTW-LAX flight used the e-ticket...

On a particular day, 112 of 280 passengers on a particular DTW-LAX flight used the e-ticket check-in kiosk to obtain boarding passes. In a random sample of eight passengers, what is the probability that four will have used the e-ticket check-in kiosk to obtain boarding passes.

Math   Statistics-And-Probability   
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