A race director is preparing for an upcoming marathon and estimates that the mean time to finish is 312 minutes. Assume that the times are normally distributed, with a standard deviation of 70 minutes. Find the percentage of times that are longer than 214 minutes. For your intermediate computations, use four or more decimal place. Give your final answer to two decimal places.
A race director is preparing for an upcoming marathon and estimates that the mean time to finish is 312 minutes. Assume that the times are normally distributed, with a standard deviation of 70 minutes. Find the percentage of times that are longer than 214 minutes. For your intermediate computations, use four or more decimal place. Give your final answer to two decimal places.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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A race director is preparing for an upcoming marathon and estimates that the mean time to finish is 312 minutes. Assume that the times are normally distributed , with a standard deviation of 70 minutes.
Find the percentage of times that are longer than 214 minutes. For your intermediate computations, use four or more decimal place. Give your final answer to two decimal places.
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