Understanding the Mean
A Grade 7 math worksheet focusing on calculating and interpreting the mean of a data set.
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Understanding the Mean
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Read each question carefully and follow the instructions to calculate and interpret the mean.
1. What is the mean of the following set of numbers: 12, 18, 15, 20, 10?
2. A student scored the following on 5 math tests: 85, 92, 78, 95, 80. What is their average (mean) score?
3. The mean is calculated by adding all the values in a data set and then dividing by the .
4. Another word for mean is .
5. Which of the following data sets has a mean of 10?
8, 9, 10, 11, 12
5, 10, 15, 20
10, 10, 10, 10, 10
All of the above
6. The mean height of 5 students is 140 cm. If a new student with a height of 150 cm joins the group, will the mean height increase or decrease? Explain your answer.
7. The following bar graph shows the number of books read by 5 students in a month. Calculate the mean number of books read.