Suppose that 15% of all commuters in a particular region carpool. In a random sample of 20 commuters, find the probability that at exactly three carpool. Group of answer choices
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Since 15% of all commuters carpool, the probability of a single commuter carpooling is 0.15, and the probability of a single commuter not carpooling is 0.85 (1 - 0.15). Now, we want to find the probability that exactly 3 out of 20 commuters carpool. This is a Show more…
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