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This document presents 3 statistical problems related to probabilities, average costs, and wait times. The first problem asks for the probability that a person has above-average sales skills and excellent potential for advancement. The second problem calculates the average weekly cost of childcare for employees of two companies. The third problem determines whether the mean wait time at a restaurant is less than 3 minutes based on a sample and significance level.

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ScribdTranslations

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EN