Finding Mean: Mixed Review
Mathematics
GCSE Higher
12 questions
~24 mins
1 views0 downloads
About This Worksheet
A worksheet covering the concept of finding the mean in the context of stem and leaf diagrams, with a range of questions from procedural practice to challenging extension problems.
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Finding Mean: Mixed Review
Subject: MathematicsGrade: GCSE Higher
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Date:
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Untitled Worksheet
Grade GCSE Higher
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Calculate the mean of the data set: 12, 15, 14, 13, 16.
[2 marks]2.
Find the mean value represented by the stem and leaf diagram below: (Stem: 2,3,4; Leaves: 5,7,8,9, 1,3,4,6, 0,2,2,5).
[3 marks]3.
A stem and leaf diagram shows data of test scores: 65, 67, 68, 70, 70, 72, 75. Calculate the mean score.
[2 marks]4.
Construct a stem and leaf diagram for the data: 23, 25, 27, 29, 31, 33.
[3 marks]5.
A data set has the following values: 8, 10, 12, 14, 16, 18. Find the mean.
[2 marks]6.
A teacher records the number of books students read in a month: 2, 3, 4, 3, 5, 6, 4. Find the mean number of books read.
[2 marks]7.
A student misreads a stem and leaf diagram and calculates the mean as 35.2. The actual mean is 32.4. Identify one common mistake that could lead to this error and explain how to correct it.
[3 marks]8.
Given the data: 24, 26, 28, 30, 32, 34, find the mean. Now, if one data point was actually 50, recalculate the mean. Comment on the impact of the outlier.
[4 marks]9.
Using a stem and leaf diagram, find the mean of the following data: 11, 13, 15, 17, 19, 21.
[3 marks]10.
A class's test scores are represented in a stem and leaf diagram. The scores are: 58, 60, 62, 64, 66, 68. Find the mean score, showing all working.
[4 marks]11.
Challenge: The data set is: 3, 5, 7, 9, 11, 13, 15. Construct a stem and leaf diagram, then find the mean. Explain how the diagram helps in understanding the data.
[5 marks]12.
Identify and correct the mistake in this calculation of mean: Sum of data points = 150, number of data points = 0, so mean = 150/0.
[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.
- • Change grade level (Grade 6 → Grade 7)
- • Swap topics (Harry Potter → Macbeth)
- • Add more questions (10 → 15)
- • Adjust difficulty
Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet