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Professors at a local university earn an average salary of $90,000 with a standard deviation of $8,000. The salary distribution is bell-shaped. Using the Empirical Rule, what can be said about the percentage of salaries that are between $82,000 and $98,000?
a) It is about 68%. b) It is about 84%. c) It is about 95%. d) It is about 97.5%.
Sagot :
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