The average teachers' salary in a certain state is $57,337. Suppose that the distribution of salaries is normal with a standard deviation of $7500. Assume that the sample is taken from a large population and the correction factor can be ignored. Use a TI- 83 Plus/TI-84 Plus calculator and round the answer to at least four decimal places. #2 (a) What is the probability that a randomly selected teacher makes less than $42,000 per year? PO 42.000

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