a. Less than 8 minu b. Between 8 and 12 More than 14 mi

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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4. The elementary physical education teacher recorded the length of time X, in minutes, required for
fourth graders to run one mile. The probability distribution is as follows:
0.32
0.24
0.15
0.12
0.08
12
14
15
In parts (a) – (d), find the percentage of fourth graders that ran the mile in the specified time.
a. Less than 8 minutes
b. Between 8 and 12 minutes
C. More than 14 minutes
Transcribed Image Text:4. The elementary physical education teacher recorded the length of time X, in minutes, required for fourth graders to run one mile. The probability distribution is as follows: 0.32 0.24 0.15 0.12 0.08 12 14 15 In parts (a) – (d), find the percentage of fourth graders that ran the mile in the specified time. a. Less than 8 minutes b. Between 8 and 12 minutes C. More than 14 minutes
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