The frequency of repair for the trucks owned by a trucking firm over a 5-year period has been tabulated. The results are shown in the following frequency distribution.

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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The frequency of repair for the trucks owned by a trucking firm over a 5-year period has been tabulated. The results are shown in the following frequency distribution.

Times repaired
Frequency
1.5-2.5
21
2.5-3.5
52
3.5-4.5
72
4.5-5.5
108
5.5-6.5
101
6.5-7.5
121
7.5-8.5
146
8.5-9.5
135
9.5-10.5
98
10.5-11.5
84
11.5-12.5
42
12.5-13.5
1
13.5-14.5
8.
Find the mean number of repairs over the 5-year period. (Round your answer to the nearest whole number.)
repairs
Transcribed Image Text:Times repaired Frequency 1.5-2.5 21 2.5-3.5 52 3.5-4.5 72 4.5-5.5 108 5.5-6.5 101 6.5-7.5 121 7.5-8.5 146 8.5-9.5 135 9.5-10.5 98 10.5-11.5 84 11.5-12.5 42 12.5-13.5 1 13.5-14.5 8. Find the mean number of repairs over the 5-year period. (Round your answer to the nearest whole number.) repairs
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