SOLUTION: A research organization decides to mail 9 questionnaires to people selected at random. If the probability of anyone answering the questionnaire is 1/7, find the probability that ex

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Question 1140289: A research organization decides to mail 9 questionnaires to people selected at random. If the probability of anyone answering the questionnaire is 1/7, find the probability that exactly 5 will answer the questionnaire.
Answer by ikleyn(52943)   (Show Source): You can put this solution on YOUR website!
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Probability  P =  =  = 0.004047 = 0.4047%.


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