On the Gulf Freeway at 7:00 AM, the average travel time from Beltway 8 to Downtown is 29.5 minutes with a standard deviation of 11.2 minutes. The distribution of travel times is approximately normal. 7. Calculate a z-score for a travel time of 20 minutes. 8. What is the probability on a random day that the travel time would be less than 20 minutes?
On the Gulf Freeway at 7:00 AM, the average travel time from Beltway 8 to Downtown is 29.5 minutes with a standard deviation of 11.2 minutes. The distribution of travel times is approximately normal. 7. Calculate a z-score for a travel time of 20 minutes. 8. What is the probability on a random day that the travel time would be less than 20 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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