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6. Assume that the salaries of elementary school teachers in the US are normally distributed with a ov mean of $52,000 and a standard deviation

6. Assume that the salaries of elementary school teachers in the US are normally distributed with a ov mean of $52,000 and a standard deviation of $4,075. a) What percentage of elementary school teachers have a salary of more than $50,000? b) If 1100 teachers are selected, how many would you expect, approximately, to have a salary of less than $48,000? C ) What is the 67th percentile of salaries

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