A Calculus professor surveys her students to find out how many hours they spend studying each week. When she analyzes the data, she finds that the data is approximately normally distributed, the mean 10.5 hours, and the standard deviation is 2.71 hours. Use the Empirical Rule to answer the following questions about her students. a) 68% of the students spend between hours and hours studying each week. b) 95% of the students spend between hours and hours studying each week. c) 99.7% of the students spend between hours and hours studying each week.
A Calculus professor surveys her students to find out how many hours they spend studying each week. When she analyzes the data, she finds that the data is approximately normally distributed, the mean 10.5 hours, and the standard deviation is 2.71 hours. Use the Empirical Rule to answer the following questions about her students. a) 68% of the students spend between hours and hours studying each week. b) 95% of the students spend between hours and hours studying each week. c) 99.7% of the students spend between hours and hours studying each week.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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