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The following histogram displays the distribution of battery life (in hours) for a certain battery model used in cell phones: A. O 0.50 B. 0.68 Relative Frequency 0.35+ C. O 0.95 D. O 0.997 0.3 0.25 0.2 0.15 0.1- 0.05 0 8 Battery Le(hrs) 10 Suppose that battery life is a normal random variable with μ = 8 and o = 1.2. Using the standard deviation rule, what is the probability that a randomly chosen battery will last between 6.8 and 9.2 hours? 12

The following histogram displays the distribution of battery life (in hours) for a certain battery model used in cell phones: A. O 0.50 B. 0.68 Relative Frequency 0.35+ C. O 0.95 D. O 0.997 0.3 0.25 0.2 0.15 0.1- 0.05 0 8 Battery Le(hrs) 10 Suppose that battery life is a normal random variable with μ = 8 and o = 1.2. Using the standard deviation rule, what is the probability that a randomly chosen battery will last between 6.8 and 9.2 hours? 12

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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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The following histogram displays the distribution of battery life (in hours) for a certain battery model used in cell phones: Relative Frequency 0.35 A. O 0.50 B. O 0.68 C. O 0.95 D. O 0.997 0.3 0.25- 0.2 0.15 0.1 0.05 6 Battery Le(hrs) 10 12 Suppose that battery life is a normal random variable with μ = 8 and o= 1.2. Using the standard deviation rule, what is the probability that a randomly chosen battery will last between 6.8 and 9.2 hours?
Transcribed Image Text:The following histogram displays the distribution of battery life (in hours) for a certain battery model used in cell phones: Relative Frequency 0.35 A. O 0.50 B. O 0.68 C. O 0.95 D. O 0.997 0.3 0.25- 0.2 0.15 0.1 0.05 6 Battery Le(hrs) 10 12 Suppose that battery life is a normal random variable with μ = 8 and o= 1.2. Using the standard deviation rule, what is the probability that a randomly chosen battery will last between 6.8 and 9.2 hours?
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