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a. The annual salaries of employees in a large company are approximately normally distributed with a...

a. The annual salaries of employees in a large company are approximately normally distributed with a mean of $50,000 and a standard deviation of $2000. What proportion of employees earned between $45,000 to $55,000? (3 decimal places)

b. The annual salaries of employees in a large company are approximately normally distributed with a mean of $50,000 and a standard deviation of $2000. What is the probability of randomly selecting one employee who earned between $45,000 to $55,000? (3 decimal places)

Math   Statistics-And-Probability   
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Answer #1

a) 98.76%

b) 0.9876

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