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In: Statistics and Probability

About 60% of adults use cash for payments. Suppose four adults were randomly selected. a. What...

About 60% of adults use cash for payments. Suppose four adults were randomly selected. a. What kind of probability is this? Explain why. b. What is the probability that one of the adults use cash for payments? c. What is the probability that more than three adults use cash for payments? d. What is the mean and variance? Interpret your results.

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