Finding Frequencies: Mixed Review
Mathematics
Grade 7
12 questions
~24 mins
1 views0 downloads
About This Worksheet
A worksheet covering finding frequencies in histograms, designed to reinforce procedural skills, reasoning, and real-world applications for Grade 7 students.
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Finding Frequencies: Mixed Review
Subject: MathematicsGrade: Grade 7
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Date:
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Untitled Worksheet
Grade Grade 7
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
A histogram shows the number of books read by students in a month. The height of each bar represents the frequency. If the bar for 4-6 books has a height of 15, and the total students surveyed is 60, what is the frequency of students who read between 4 and 6 books?
[2 marks]2.
Calculate the frequency of students who read fewer than 4 books if the total number of students is 60 and the frequencies for other categories are: 10 (more than 6 books), 20 (4-6 books), and 15 (more than 2 but fewer than 4).
[3 marks]3.
In a histogram, the bar for ages 10-12 has a height of 12. If the total number of students is 48, what is the frequency of students aged 10-12?
[2 marks]4.
A histogram shows the time spent on a project in minutes. The bar for 20-30 minutes has a height of 18. If there are 90 students surveyed, what is the frequency of students who spent between 20 and 30 minutes?
[2 marks]5.
If the frequency for students who prefer math is 25, and the total number of students is 100, what is the height of the bar representing math in the histogram?
[2 marks]6.
A histogram shows the number of pets owned by students: 8-10 pets with a frequency of 12, 11-13 pets with a frequency of 9, and 14-16 pets with a frequency of 4. What is the total number of students surveyed?
[3 marks]7.
A histogram shows the number of hours students sleep: 6-7 hours (frequency 20), 8-9 hours (frequency 15), and 10-11 hours (frequency 10). Find the total number of students.
[3 marks]8.
A histogram indicates that 30 students scored between 70-80, 20 scored between 81-90, and 10 scored between 91-100. What is the total number of students surveyed?
[2 marks]9.
Construct a histogram bar for the interval 15-20 minutes if the frequency is 22 students. Draw the bar with appropriate height on the grid.
[3 marks]10.
A histogram shows the number of tickets sold for different days. If the bar for Monday has a height of 25 and the total tickets sold over the week are 150, what is the frequency for Monday?
[2 marks]11.
A histogram displays test scores with the following data: 40-50 (frequency 10), 51-60 (frequency 15), 61-70 (frequency 20). What is the total number of students?
[2 marks]12.
Identify and correct the mistake: In a histogram, the bar for 0-10 has a height of 12, but the total number of students is 50, yet the sum of all bar heights is only 30. What is wrong?
[3 marks]Quick Actions
What is Remix?
Create a new worksheet based on this one. Change the grade level, topic, number of questions, or difficulty - then generate a fresh version.
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet