Question: A random sample of 100 customers at a grocery store
A random sample of 100 customers at a grocery store were asked to classify themselves as making a quick trip, doing a major stock-up, or doing a fill-in shop.62 of the customers said they were making quick trips, and 13 were doing major stock-ups. What is the probability that a grocery store customer is doing a fill-in shop? Assume the relative frequencies from the sample are good estimates of the probabilities.
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