Lesson S2

S2 Tables, charts and diagrams for categorical and discrete data Quiz: AQA Maths, Unit 6

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson S2, Tables, charts and diagrams for categorical and discrete data: 20 multiple choice questions for the AQA GCSE Maths (8300), Unit 6: Statistics, written with Revision Ninja.

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The 20 questions

  1. Which diagram is most suitable for showing categorical data such as favourite colours?

    • A box plot
    • A bar chart
    • A histogram
    • A scatter graph

  2. Which diagram shows parts of a whole for categorical data?

    • A line graph
    • A pie chart
    • A time series graph
    • A scatter graph

  3. What is a vertical line chart used for?

    • Categorical data only
    • Continuous data grouped into intervals
    • Ungrouped discrete numerical data
    • Time series data only

  4. A line graph is most suitable for which type of data?

    • Grouped continuous data
    • Categorical data
    • Time series data
    • Data with no order

  5. In a pictogram, what does each symbol represent?

    • The value stated in the key
    • Always one person
    • The median of the data
    • The mean of the data

  6. What is a frequency table?

    • A list of probabilities only, with no frequencies at all
    • A table of averages for each group in the data set
    • A graph showing the changes in values over time
    • A table showing how often each value or category occurs

  7. Which diagram is suitable for comparing two sets of categorical data side by side?

    • A single histogram
    • A time series line graph
    • A scatter graph
    • A dual bar chart

  8. Which diagram suits the number of goals scored per match, which is discrete?

    • A vertical line chart
    • A pictogram with no key
    • A histogram
    • A pie chart

  9. A pie chart shows 12 red, 8 blue and 5 green. What angle is the sector for red?

    • 12 degrees
    • 120 degrees
    • 172.8 degrees
    • 96 degrees

  10. A pie chart shows 12 red, 8 blue and 5 green. What angle is the sector for blue?

    • 115.2 degrees
    • 8 degrees
    • 144 degrees
    • 96 degrees

  11. A pictogram key says each symbol represents 5 pupils. A row shows 7 symbols. How many pupils does it show?

    • 7
    • 35
    • 12
    • 5

  12. A frequency table gives scores 1 with frequency 3, 2 with frequency 5 and 3 with frequency 2. What is the mode?

    • 3
    • 5
    • 1
    • 2

  13. A vertical line chart of shoe sizes has frequencies 2, 5 and 4 for three sizes. How many pupils are there in total?

    • 2
    • 5
    • 4
    • 11

  14. A bar chart shows favourite fruit: apples 18, bananas 12 and pears 6. How many people were asked in total?

    • 6
    • 18
    • 12
    • 36

  15. Why are there gaps between the bars of a bar chart?

    • The data are categories rather than continuous values
    • Gaps are required by the rules of statistical drawing
    • The bars are too thin to be drawn touching each other
    • The data are continuous, measured on a numerical scale

  16. A coin is tossed 20 times with 14 heads and 6 tails. What is the relative frequency of heads?

    • 0.6
    • 0.7
    • 0.3
    • 0.14

  17. (H) A pie chart represents 40 people. One sector is 90 degrees. How many people are in that sector?

    • 4
    • 90
    • 10
    • 40

  18. (H) A discrete data set has values 1, 2 and 3 with frequencies 2, 3 and 1. What is the mean to 2 decimal places?

    • 1.83
    • 2.5
    • 2
    • 1.5

  19. (H) Which statement about bar charts and histograms is correct?

    • Both are only used for discrete data, never continuous data
    • Bar charts have gaps, and histograms for continuous data have no gaps
    • Histograms have gaps between bars, and bar charts do not have them
    • Both always have gaps between their bars, whatever the data

  20. (H) A pictogram key says one symbol is 4 people. A row shows 2.5 symbols. How many people does it show?

    • 2.5
    • 4
    • 10
    • 6.5

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