The average high-school teacher annual salary is $43,000 (Payscale.com, August 20, 2010). Let teacher salary be normally

Question:

The average high-school teacher annual salary is

$43,000 (Payscale.com, August 20, 2010). Let teacher salary be normally distributed with a standard deviation of $18,000.

a. What percent of high school teachers make between

$40,000 and $50,000?

b. What percent of high school teachers make more than

$80,000? LO5

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