On a certain test, the mean is 100 with a standard deviation of 15. The results come very close to fitting a normal curve. Suppose this test is given to a very large group of people. Use the empirical rule to find the percentage of people whose scores are between 55 and 145. What is the percentage of people whose test scores are between 55 and 145? % (Type an integer or a decimal.) %

On a certain test, the mean is 100 with a standard deviation of 15. The results come very close to fitting a normal curve. Suppose this test is given to a very large group of people. Use the empirical rule to find the percentage of people whose scores are between 55 and 145. What is the percentage of people whose test scores are between 55 and 145? % (Type an integer or a decimal.) %

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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