An unknown distribution has a mean of 90 and a standard deviation of 15. A sample of size 80 is drawn randomlyfrom the population.a. Find the probability that the sum of the 80 values (or the total of the 80 values) is more than 7,500.b. Find the sum that is 1.5 standard deviations above the mean of the sums.

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Answered: An unknown distribution has a mean of…

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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