Q2// A construction zone on a highway has a posted speed limit of 40 miles per hour. The speeds of vehicles passing through this construction zone are normally distributed with a mean of 46 miles per hour and a standard deviation of 4 miles per hour. Find the percentage of vehicles passing through this construction zone that are; a. exceeding the posted speed limit. b. traveling at speeds between 50 and 57 miles per hour. What is the vehicles speed for the highest 17% probability start from?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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Q2// A construction zone on a highway has a posted speed limit of 40 miles per
hour. The speeds of vehicles passing through this construction zone are normally
distributed with a mean of 46 miles per hour and a standard deviation of 4 miles
per hour. Find the percentage of vehicles passing through this construction zone
that are;
a. exceeding the posted speed limit.
b. traveling at speeds between 50 and 57 miles per hour.
What is the vehicles speed for the highest 17% probability start from?
Transcribed Image Text:Q2// A construction zone on a highway has a posted speed limit of 40 miles per hour. The speeds of vehicles passing through this construction zone are normally distributed with a mean of 46 miles per hour and a standard deviation of 4 miles per hour. Find the percentage of vehicles passing through this construction zone that are; a. exceeding the posted speed limit. b. traveling at speeds between 50 and 57 miles per hour. What is the vehicles speed for the highest 17% probability start from?
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