Probability of returning questionnaires

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Reference no: EM1396127

Suppose a marketing research firm sends questionnaires to 10 different companies. Assuming that each company, independently of the others, returns its completed questionnaire with probability 0.40, what is the probability that 5 or less questionnaires will be returned? Calculate also the probability that 7 or more questionnaires will be returned.

Reference no: EM1396127

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