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John Reynolds, an auditor for a large credit card company, knows that, on average (), the monthly balance of any given customer is $112, and

John Reynolds, an auditor for a large credit card company, knows that, on average (), the monthly balance of any given customer is $112, and the standard deviation () is $56.If John audits 50 randomly selected accounts, what is the probability that the sample average monthly balance is less than $100?

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