Mastering Cumulative Frequency
Mathematics
Year 9
1 questions
~2 mins
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About This Worksheet
A worksheet covering Cumulative Frequency for Year 9 students.
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Mastering Cumulative Frequency
Subject: MathematicsGrade: Year 9
Name:
Date:
Untitled Worksheet
Grade Year 9
A
Introduction
Read the brief explanation below before attempting the questions.
1.
Cumulative frequency is a way of summarizing data by adding up frequencies from the smallest to largest values. It is often displayed as a table or graph to help interpret the data distribution.
[2 marks]B
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Complete the cumulative frequency table for the following data: {Scores: 10, 20, 30, 40, 50} with frequencies {5, 7, 8, 4, 6}.
[3 marks]2.
Using the data from Question 1, what is the total number of students?
[2 marks]3.
Estimate the median score from the cumulative frequency table in Question 1.
[3 marks]4.
A cumulative frequency graph shows that 20 students scored less than or equal to 35. How many students scored less than or equal to 35?
[2 marks]5.
Explain what a steep increase in the cumulative frequency graph indicates about the data distribution.
[4 marks]6.
A class has the following scores: 55, 60, 65, 70, 75, 80, 85, 90. Construct a cumulative frequency table assuming each score appears once.
[4 marks]7.
Using the data in Question 6, what score corresponds approximately to the median?
[3 marks]8.
If 75% of the students scored below 80, how many students are in the class?
[3 marks]9.
A survey of 50 people shows the number of hours they watch TV per week. The cumulative frequency up to 10 hours is 10, up to 20 hours is 30, and up to 30 hours is 45. How many people watch more than 20 hours of TV per week?
[3 marks]10.
Describe how a cumulative frequency table and graph can help identify the spread and center of a data set.
[4 marks]Quick Actions
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Details
- Created
- 12/30/2025
- Updated
- 12/30/2025
- Type
- worksheet