The average number of potholes per 10 miles of paved U.S. roads is 130. Assume this variable
Question:
The average number of potholes per 10 miles of paved U.S. roads is 130. Assume this variable is approximately normally distributed and has a standard deviation of 5. Find the probability that a randomly selected road has
a. More than 142 potholes per 10 miles
b. Less than 125 potholes per mile
c. Between 128 and 136 potholes per mile
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Step by Step Answer:
a z 142 130 5 24 Pz 24 1 09918 00082 TI ...View the full answer
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Related Book For 
Elementary Statistics A Step By Step Approach
ISBN: 9781259755330
10th Edition
Authors: Allan G. Bluman
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