Measures of Center Worksheet
Explore mean, median, and mode with this Grade 9 math worksheet on measures of center.
Includes
Standards
Topics
Measures of Center
Name:
Date:
Score:
Read each question carefully and provide the best answer. Show all your work where applicable.
1. Define the following terms in your own words:
a) Mean:
b) Median:
c) Mode:
2. Calculate the mean, median, and mode for the following data set:
Data set: {12, 15, 18, 12, 20, 22, 12, 15, 18}
Mean:
Median:
Mode:
3. Which measure of center is most affected by outliers?
Mean
Median
Mode
All of the above
4. What is the median of an even number of data points?
The average of the two middle numbers
The largest number in the set
The smallest number in the set
There is no median
5. The is the value that appears most often in a data set.
6. To find the median, you must first the data from least to greatest.
7. A student scored the following on their math tests: 85, 92, 78, 85, 90. What is the mean test score?
8. Consider the data set: {5, 7, 10, 12, 15, 18}. Find the median.
9. Analyze the bar graph below, which shows the number of books read by students in a month. Calculate the mean, median, and mode of the books read.
Mean:
Median:
Mode:
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