A set of exam scores is normally distributed with a mean = 82 and standard deviation = 9. Use the Empirical Rule to complete the following sentences. 68% of the scores are between 95% of the scores are between 99.7% of the scores are between and and and
A set of exam scores is normally distributed with a mean = 82 and standard deviation = 9. Use the Empirical Rule to complete the following sentences. 68% of the scores are between 95% of the scores are between 99.7% of the scores are between and and and
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:For a 4-period class, students should spend an average of 12 hours studying for the class. A survey
was done on students, and the distribution of total study hours per week is bell-shaped with a mean
of 15 hours and a standard deviation of 3 hours.
Use the Empirical Rule to answer the following questions.
68% of the students have study hours that are between
and

Transcribed Image Text:A set of exam scores is normally distributed with a mean = 82 and standard deviation = 9.
Use the Empirical Rule to complete the following sentences.
68% of the scores are between
95% of the scores are between
99.7% of the scores are between
and
and
and
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