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2. (8) According to government data, the probability that an adult was never in a museum is 15%. A random sample of 25 adults

2. (8) According to government data, the probability that an adult was never in a museum is 15%. A random sample of 25 adults were surveyed. a. What is the probability that exactly three adults were never in a museum? b. Find the mean and standard deviation of the number of adults that were never in a museum.

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