Question: In a certain community, on a given evening, someone is at home in 85% of the households. Suppose that a researcher conducting a telephone survey
In a certain community, on a given evening, someone is at home in 85% of the households. Suppose that a researcher conducting a telephone survey randomly selects 12 households to call that evening. What is the probability that someone will be at home in exactly 7 households?
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P x nCrprqn r where p 85 or 085 ... View full answer
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