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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?
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?
Expert's answer
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Comments
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.
what is that f and how do u calculate that on the calculator
Thank you for correcting us.
Pls this is not the question i asked and the answer to
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