For a recent 10k run, the finishers are normally distributed with mean 63 minutes and standard deviation 14 minutes. Complete parts (a) through (d) below. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. Determine the percentage of finishers with times between 45 and 75 minutes.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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3:
pre:
6.4
For a recent 10k run, the finishers are normally distributed with mean 63 minutes and standard deviation 14 minutes. Complete parts (a) through (d) below.
Click here to view page 1 of the standard normal distribution table.
Click here to view page 2 of the standard normal distribution table.
a. Determine the percentage of finishers with times between 45 and 75 minutes.
Approximately 70.50 % of finishers had times between 45 and 75 minutes.
(Round to two decimal places as needed.)
b. Determine the percentage of finishers with times less than 80 minutes.
Approximately 88.77 % of finishers had times less than 80 minutes.
(Round to two decimal places as needed.)
c. Obtain and interpret the 30th percentile for the finishing times.
The 30th percentile is
minutes.
(Round to two decimal places as needed.)
Que
zion 1 (1
stion 5 (0
stion 9 (1
correct:
Transcribed Image Text:3: pre: 6.4 For a recent 10k run, the finishers are normally distributed with mean 63 minutes and standard deviation 14 minutes. Complete parts (a) through (d) below. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. Determine the percentage of finishers with times between 45 and 75 minutes. Approximately 70.50 % of finishers had times between 45 and 75 minutes. (Round to two decimal places as needed.) b. Determine the percentage of finishers with times less than 80 minutes. Approximately 88.77 % of finishers had times less than 80 minutes. (Round to two decimal places as needed.) c. Obtain and interpret the 30th percentile for the finishing times. The 30th percentile is minutes. (Round to two decimal places as needed.) Que zion 1 (1 stion 5 (0 stion 9 (1 correct:
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