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Salaries for teachers in a particular elementary school district are normally distributed with a mean of $45,000 and a standard deviation of $6,300. We randomly

Salaries for teachers in a particular elementary school district are normally distributed with a mean of $45,000 and a standard deviation of $6,300. We randomly survey ten teachers from that district. a) Find the probability that the teachers earn a total of over $400,000. (Round your answer to four decimal places.)

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