Range: Challenge & Extension
Mathematics
Grade 7
10 questions
~20 mins
1 views0 downloads
About This Worksheet
A worksheet focused on understanding and calculating the Range in datasets using Stem and Leaf Diagrams, including challenging and real-world problems suitable for extension work.
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Full preview • 10 questions
Range: Challenge & Extension
Subject: MathematicsGrade: Grade 7
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Untitled Worksheet
Grade Grade 7
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Given the dataset represented by the Stem and Leaf diagram: 3|2, 3|5, 4|1, 4|8, 5|0, 5|6, 6|3, 6|9. Calculate the Range of the data.
[2 marks]2.
Construct a Stem and Leaf diagram for the following data: 12, 15, 14, 13, 18, 17, 16. Then determine the Range.
[3 marks]3.
A teacher records the scores of students on a test: 78, 85, 92, 88, 79, 84, 90. Using a Stem and Leaf diagram, find the Range.
[2 marks]4.
A dataset has the following Stem and Leaf: 2|3, 2|7, 3|1, 3|4, 4|0, 4|8. Calculate the Range.
[2 marks]5.
Explain why the Range might not always be a reliable measure of data spread. Give an example using a Stem and Leaf diagram.
[3 marks]6.
The following Stem and Leaf diagram shows ages of students: 11|2, 11|7, 12|4, 13|0, 13|8, 14|1, 15|5. Find the Range of ages.
[2 marks]7.
A dataset has the following values in a Stem and Leaf diagram: 7|3, 7|9, 8|2, 8|5, 9|0, 9|8. Calculate the Range and explain your method.
[3 marks]8.
A dataset of daily temperatures over a week is represented as: 10, 12, 15, 13, 11, 14, 16. Construct its Stem and Leaf diagram and determine the Range.
[3 marks]9.
Identify an error in calculating the Range when given a dataset. The dataset is 22, 25, 20, 27, 21. A student calculates the Range as 27 - 22 = 5. What's wrong with this calculation?
[3 marks]10.
Using the dataset: 5, 7, 8, 9, 10, 12, 15, find the Range. Then, propose a scenario where the Range does not reflect overall data variability.
[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