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Average Annual Salary for a Worker in the United States

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Assume that the average annual salary for a worker in the United States is $30,000 and that the annual salaries for Americans are normally distributed with a standard deviation equal to $7,000. Find the following:

(A) What percentage of Americans earn below $22,000?
(B) What percentage of Americans earn above $42,000?

Please show all of your work.

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This solution provides simple calculations and answers for probability.

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