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Stem-and-Leaf Diagrams and Dot Plots — Free MYP1 Mathematics Practice Questions
1QuestionPlotting Dot Plots from Small Data SetsConcept Practice
4 marks~6 minCriterion D
Ten students' shoe sizes are listed below.
5, 6, 6, 7, 7, 7, 8, 8, 9, 10
5, 6, 6, 7, 7, 7, 8, 8, 9, 10
a
Label the number line and plot the dot plot for this data. [2]
b
Identify the most common shoe size shown in your dot plot. [1]
c
Describe one reason why this dot plot may not be a good way to predict the most common shoe size for the whole school. [1]
Solutions
2QuestionPlotting Dot Plots from Small Data SetsAssessment Practice
7 marks~11 minCriterion C
Eight students recorded their screen time (in minutes) for one day:
25, 30, 30, 45, 50, 50, 50, 60
25, 30, 30, 45, 50, 50, 50, 60
a
Label the dot plot below by writing the correct number of dots above each value. [2]
b
Describe what the dot plot shows about which screen time value appears most often. [2]
c
Identify one way a dot plot is different from a table for showing this data, and describe how that difference could make it harder for a parent to understand the results. [3]
Solutions
3QuestionStem-and-LeafConcept Practice
4 marks~6 minCriterion A
The diagram shows a stem-and-leaf diagram of the lengths, in centimetres, of leaves collected by students. Study the diagram.
a
Label the parts of the diagram by identifying which column shows the tens digit. [1 mark]
b
State the data value represented by the entry stem 1, leaf 8. [1 mark]
c
Give an example of a data value that would be recorded on stem 2 and explain where its leaf would be placed. [2 marks]
Solutions
4QuestionStem-and-LeafConcept Practice
2 marks~3 minCriterion B
A teacher recorded the test scores of a class in the stem-and-leaf diagram below.
Key: 1 | 2 means a score of 12.
| Stem | Leaf |
|---|---|
| 1 | 2 5 8 |
| 2 | 1 4 7 |
| 3 | 0 3 6 |
Key: 1 | 2 means a score of 12.
a
Identify the pattern in the scores. [1]
b
List the next two scores that follow the pattern. [1]
Solutions
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