Mathematics
Grade 8
45 min
Changes in mean, median, mode, and range
Tutorial Preview
1
A data set is {10, 20, 30}. What happens to the mean if 60 is added?
2
A data set is {5, 10, 15, 20, 25}. What happens to the median if 18 is added?
3
A set is {2, 4, 4, 6, 9}. What happens to the mode and range if 9 is changed to 4?
Sample Practice Questions
Easy
The data set is {2, 4, 6}. What is the new mean if 16 is added to the set?
0.4
1.7
2.8
3.12
Easy
The data set is {1, 3, 5, 7, 9}. What is the new median if 4 is added to the set?
0.3.5
1.4
2.4.5
3.5
Easy
The set is {10, 10, 20, 30}. If 30 is changed to 10, what is the new mode?
0.10
1.15
2.20
3.30
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