3.12 Speeding on the I-5, Part I: The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in California is nearly normal with a mean of 72.6 miles/hour and a standard deviation of 4.78 miles/hour. (a) What percent of passenger vehicles travel slower than 80 miles/hour? % (please round to two decimal places) (b) What percent of passenger vehicles travel between 60 and 80 miles/hour? % (please round to two decimal places) (c) How fast do the fastest 5% of passenger vehicles travel? mph (please round to two decimal places) (d) The speed limit on this stretch of the l-5 is 70 miles/hour. Approximate what percentage of the passenger vehicles travel above the speed limit on this stretch of the I-5. % (please round to two decimal places)
3.12 Speeding on the I-5, Part I: The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in California is nearly normal with a mean of 72.6 miles/hour and a standard deviation of 4.78 miles/hour. (a) What percent of passenger vehicles travel slower than 80 miles/hour? % (please round to two decimal places) (b) What percent of passenger vehicles travel between 60 and 80 miles/hour? % (please round to two decimal places) (c) How fast do the fastest 5% of passenger vehicles travel? mph (please round to two decimal places) (d) The speed limit on this stretch of the l-5 is 70 miles/hour. Approximate what percentage of the passenger vehicles travel above the speed limit on this stretch of the I-5. % (please round to two decimal places)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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![Question 6
3.12 Speeding on the I-5, Part I: The distribution of passenger vehicle speeds traveling on the Interstate 5
Freeway (I-5) in California is nearly normal with a mean of 72.6 miles/hour and a standard deviation of
4.78 miles/hour.
(a) What percent of passenger vehicles travel slower than 80 miles/hour?
% (please round to two decimal places)
(b) What percent of passenger vehicles travel between 60 and 80 miles/hour?
% (please round to two decimal places)
(c) How fast do the fastest 5% of passenger vehicles travel?
mph (please round to two decimal places)
(d) The speed limit on this stretch of the l-5 is 70 miles/hour. Approximate what percentage of the
passenger vehicles travel above the speed limit on this stretch of the l-5.
% (please round to two decimal places)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F73360e59-5edd-486f-ad18-bddf56b16620%2Fa8f5a5c0-7cf3-4503-af17-d9cec53249ce%2F7ic19dj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question 6
3.12 Speeding on the I-5, Part I: The distribution of passenger vehicle speeds traveling on the Interstate 5
Freeway (I-5) in California is nearly normal with a mean of 72.6 miles/hour and a standard deviation of
4.78 miles/hour.
(a) What percent of passenger vehicles travel slower than 80 miles/hour?
% (please round to two decimal places)
(b) What percent of passenger vehicles travel between 60 and 80 miles/hour?
% (please round to two decimal places)
(c) How fast do the fastest 5% of passenger vehicles travel?
mph (please round to two decimal places)
(d) The speed limit on this stretch of the l-5 is 70 miles/hour. Approximate what percentage of the
passenger vehicles travel above the speed limit on this stretch of the l-5.
% (please round to two decimal places)
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