Lesson 3.1.4.9.5

3.1.4.9.5 Frequency tables, bar charts, histograms and scatter diagrams Quiz: AQA Psychology, Unit 4

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 3.1.4.9.5, Frequency tables, bar charts, histograms and scatter diagrams: 20 multiple choice questions for the AQA GCSE Psychology (8182), Unit 4: Research methods, written with Revision Ninja.

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The 20 questions

  1. Which chart is best for discrete categories like favourite colours?

    • Scatter diagram
    • Line graph
    • Bar chart
    • Histogram

  2. What is a key structural feature of a histogram?

    • Bars touch
    • Bars have gaps
    • Lines connect tops
    • Equal category counts

  3. Which chart is most suitable for continuous age bands?

    • Pie chart
    • Histogram
    • Bar chart
    • Tally chart

  4. What does a frequency table show?

    • Data occurrence count
    • Mean score
    • Variable correlation
    • Data spread

  5. Why must all bars on a bar chart have equal widths?

    • To touch data
    • To show frequency
    • Fair visual comparison
    • To save space

  6. Which graph feature shows that categories are separate on a bar chart?

    • Touching bars
    • A trend line
    • Gaps between bars
    • Overlapping bars

  7. Which axis on a histogram usually represents frequency?

    • Diagonal line
    • Vertical axis
    • Horizontal axis
    • Z-axis

  8. How are the bars drawn on a histogram compared to a bar chart?

    • They touch
    • They have gaps
    • They overlap
    • They are dashed

  9. A scatter diagram shows points rising from bottom left to top right. What relationship is shown?

    • A proven causal relationship
    • No correlation
    • A negative correlation
    • A positive correlation

  10. A bar chart shows 12 children chose red, 8 chose blue and 5 chose green. Which category is most popular?

    • All are equal
    • Red
    • Green
    • Blue

  11. A frequency table gives score 5 with frequency 4, score 7 with frequency 2 and score 9 with frequency 6. What is the total number of scores?

    • 12
    • 15
    • 9
    • 11

  12. On a histogram, what does the tallest bar represent?

    • Most frequent interval
    • Lowest frequency interval
    • Highest individual score
    • Mean reaction time

  13. What relationship is shown when high values on both scatter diagram variables cluster together?

    • Positive correlation
    • No correlation
    • Negative correlation
    • Zero correlation

  14. What is placed on the horizontal x-axis of a bar chart?

    • Continuous variable
    • Percentage values
    • Categorical variable
    • Frequency counts

  15. What type of data is represented using a histogram?

    • Continuous data
    • Qualitative data
    • Categorical data
    • Discrete data

  16. What is a single data point located far away from others on a scatter diagram called?

    • A median
    • An outlier
    • A mode
    • A correlation

  17. A frequency table shows 3 participants scored 10, 5 scored 11 and 2 scored 12. How many participants in total?

    • 5
    • 12
    • 3
    • 10

  18. What information does a frequency table provide alongside each raw score?

    • Score range
    • Standard deviation
    • Number of occurrences
    • Percentage change

  19. Which graph is used to show individual participants' pairs of scores on two variables?

    • Frequency table
    • Scatter diagram
    • Histogram
    • Bar chart

  20. Why must both axes on a histogram be labelled clearly?

    • To show significance
    • To prove causality
    • To calculate mode
    • To identify variables

All AQA Psychology quizzes