Average speed on a freeway is 80 mph. Among all vehicles 65% drive 8 miles above the speed limit of 70 mph. 34 What fraction drive within ± 5 mph from the mean speed? a 0.7327
Average speed on a freeway is 80 mph. Among all vehicles 65% drive 8 miles above the speed limit of 70 mph. 34 What fraction drive within ± 5 mph from the mean speed? a 0.7327
Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter1: Foundations
Section1.1: Introduction To Whole Numbers
Problem 76E: Astronomy The average distance between Earth and the sun is 149,597,888 kilometers. Round the...
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Question
Average speed on a freeway is | 80 | mph. |
Among all vehicles | 65% | drive | 8 | miles above the speed limit of 70 mph. |
34 | What fraction drive within ± | 5 | mph from the mean speed? | ||||
a | 0.7327 | ||||||
b | 0.6978 | ||||||
c | 0.6646 | ||||||
d | 0.6330 |
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