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This worksheet covers Data Word Problems, which is part of the Measures of Center and Spread module in the SAT Math course. Practice problems are designed to strengthen key concepts and build confidence.
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Set 4 — Mastery
A teacher recorded the scores of her students in a math test: 78, 85, 90, 70, 95. What is the median score?
85
90
78
70
In a survey, the ages of five participants were 22, 26, 24, 30, and 28 years. What is the range of their ages?
8
10
6
4
A company found that the average number of hours its employees worked in a week was 40 hours. If one employee worked 60 hours that week, what would be the new average for the company if this was the only change?
41
40.5
42
39
The heights of five plants are measured in centimeters: 15, 18, 20, 22, 25. What is the mean height?
20
21
22
23
A class of students has test scores of 85, 87, 92, 100, and 95. If the lowest score is dropped, what is the new mean score?
92
93
91
90
The following are the number of books read by five students in a month: 3, 5, 8, 10, and 12. What is the mode of the data?
5
8
10
No mode
If the mean score of a class is 76 and the number of students is 20, what is the total score of the class?
1520
760
152
7600
A set of test scores has a mean of 85 and a standard deviation of 5. If one score of 100 is removed, how does this affect the mean?
It increases
It decreases
It remains the same
Cannot be determined
A set of test scores is given: 55, 60, 65, 70, 75, 80, 85. What is the interquartile range (IQR)?
20
15
10
25
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The scores of a basketball team over five games were 80, 85, 90, 95, and 100. If the team scored 110 in the next game, how will this affect the mean score?
Increase
Decrease
Stay the same
Cannot be determined