Santa Ana Unified School District / Overview
Chapter 2.3 Worksheet C (DO NOT WRITE ON WORKSHEET)
Find the weighted mean of the following situations.
1) Find the weighted mean.
Source Score Weight
HW 72 15%
Quiz 80 25%
Test 94 40%
Lab 0 15%
Attendance 55 5%
2) Find the weighted mean.
F Source Salary
28 Math $62,124
10 History $42,549
25 Science $71,999
8 English $39,541
3) Find the weighted mean.
Source Score Weight
HW 95 15%
Quiz 84 11%
Quiz 54 11%
Quiz 82 11%
Test 90 40%
Lab 78 7%
Attendance 85 5%
4) Find the weighted mean.
28 Masters $82,024
104 Bachelors $62,549
182 High School $31,499
9 Non High School $19,744
5) Find the grouped mean
Ages F
0-6 42
7-13 34
14-20 32
21-27 25
28-34 20
35-41 14
6) Find the grouped mean
Height F
60-65 2
66-71 25
72-77 12
78-83 3
Find the mean, median, mode and also state which is the best represents the data of the following data sets.
7) 11 20 14 41 34 25 14 15 28 33 24 40 34 42 33 34 11 14 22 24 25
8) 20 14 41 34 253 14 15 28 33 24 401 34 42 33
9) 10.4 12.4 13.4 12.0 11.3 10.1 14.2 11.2 13.2 14.0 13.5
10) 54 62 41 24 15 31 25 14 1001 14 15 32 55 42 47 32 2
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