A study of long-distance phone calls made from General Electric Corporate Headquarters in Fairfield, Connecticut, revealed the length of the calls, in minutes, follows the normal probability distribution. The mean length of time per call was 3.9 minutes and the standard deviation was 0.60 minutes. B. What is the probability that calls last more than 4.5 minutes? C. What is the probability that calls last between 4.5 and 5.5 minutes? D. What is the probability that calls last between 3.5 and 5.5 minutes?
A study of long-distance phone calls made from General Electric Corporate Headquarters in Fairfield, Connecticut, revealed the length of the calls, in minutes, follows the normal probability distribution. The mean length of time per call was 3.9 minutes and the standard deviation was 0.60 minutes. B. What is the probability that calls last more than 4.5 minutes? C. What is the probability that calls last between 4.5 and 5.5 minutes? D. What is the probability that calls last between 3.5 and 5.5 minutes?
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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A study of long-distance phone calls made from General Electric Corporate Headquarters in Fairfield, Connecticut, revealed the length of the calls, in minutes, follows the
B. What is the probability that calls last more than 4.5 minutes?
C. What is the probability that calls last between 4.5 and 5.5 minutes?
D. What is the probability that calls last between 3.5 and 5.5 minutes?
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