Answer to Question #47153 in Statistics and Probability for ruth

Question #47153

The annual salaries of employees in a large company are approximately normally distributed with a mean of $50000 and a standard deviation of $20000.

a. What percent of people earn less than $40000?
b. What percent of people earn between $45000 and $65000?
c. What percent of people earn more than $70000?

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Assignment Expert

09.02.21, 07:10

Dear mila, the solution of the question clearly describes the function as the cumulative distributive function of a standard normal random variable. You can compute the value of this function with a help of =Norm.s.dist(z,1) in Microsoft Excel, besides, there are statistical tables with tabulated values of this function.

mila

09.02.21, 01:22

what is that f and how do u calculate that on the calculator

Assignment Expert

27.02.20, 17:39

Thank you for correcting us.

Rukkayya dalhatu

27.02.20, 17:16

Pls this is not the question i asked and the answer to