2. Information from the Department of Motor Vehicles indicates that the average age of licensed drivers is u = 39,7 years with a standard deviation of o = 12.5 years. Assuming the distribution of drivers' ages is approximately normal a. What proportion of licensed drivers are more than 50 years old? b. What proportion of licensed drivers are less than 30 years old? c. What is proportion of licensed drivers between 30 and 50 years old?
2. Information from the Department of Motor Vehicles indicates that the average age of licensed drivers is u = 39,7 years with a standard deviation of o = 12.5 years. Assuming the distribution of drivers' ages is approximately normal a. What proportion of licensed drivers are more than 50 years old? b. What proportion of licensed drivers are less than 30 years old? c. What is proportion of licensed drivers between 30 and 50 years old?
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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