Full-time Ph.D. students receive an average of $12,837 per year. If the average salaries are normally distributed with a

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Full-time Ph.D. students receive an average of $12,837 per year. If the average salaries are normally distributed with a

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Full-time Ph.D. students receive an average of $12,837 per year.If the average salaries are normally distributed with a standarddeviation of $1500, find these probabilities.
(a) The student makes more than $13,100.
(b) The student makes between $13,800 and $14,800
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