Problem 5: In an institution 2.28% employees have incomes below 4500 and 15.8% have income above 7500 per month. Assuming the distribution of incomes to be normal, find the mean and S.D. of incomes.
Problem 5: In an institution 2.28% employees have incomes below 4500 and 15.8% have income above 7500 per month. Assuming the distribution of incomes to be normal, find the mean and S.D. of incomes.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:Problem 5:
In an institution 2.28% employees have incomes
below 4500 and 15.8% have income above 7500
per month. Assuming the distribution of
incomes to be normal, find the mean and S.D. of
incomes.
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