Lesson 3.4.4

3.4.4 Statistical skills Quiz: AQA Geography, Unit 4

20 questions

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Lesson 3.4.4, Statistical skills: 20 multiple choice questions for the AQA GCSE Geography (8035), Unit 4: Geographical skills, written with Revision Ninja.

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The 20 questions

  1. What measure of central tendency represents the middle value in an ordered data set?

    • Range
    • Mean
    • Median
    • Mode
  2. Which measure of central tendency identifies the most frequently occurring value in a data set?

    • Mean
    • Quartile
    • Median
    • Mode
  3. How is the range of a numerical data set calculated?

    • Upper plus lower quartile
    • Highest plus lowest
    • Median divided by mean
    • Highest minus lowest
  4. How is the interquartile range of a data set calculated?

    • Mean plus median
    • Lower plus upper quartile
    • Highest minus lowest
    • Upper minus lower quartile
  5. What term describes a running total of frequencies added together up to a given point?

    • Relative proportion
    • Interquartile range
    • Modal class
    • Cumulative frequency
  6. What term describes a value below which a specific percentage of data falls?

    • Quartile
    • Percentile
    • Percentage increase
    • Bivariate trend
  7. What feature is drawn on a scatter graph to indicate the general trend of data?

    • Bar chart column
    • Line of best fit
    • Pie chart slice
    • Contour line
  8. What type of graph is specifically used to show the relationship between two set variables?

    • Choropleth map
    • Population pyramid
    • Dispersion graph
    • Scatter graph
  9. What is the mean of the values 3, 5, 7, 9 and 11?

    • 35
    • 5
    • 7
    • 9
  10. What is the mode of the values 2, 4, 4, 6 and 9?

    • 6
    • 2
    • 9
    • 4
  11. What is the range of the values 10, 20, 30, 40 and 50?

    • 30
    • 40
    • 150
    • 50
  12. A town's population rises from 50,000 to 60,000. What is the percentage increase?

    • 20%
    • 120%
    • 25%
    • 10%
  13. What is the median of the values 1 to 8?

    • 4.5
    • 4
    • 8
    • 5
  14. A scatter graph has a line of best fit sloping downward. What type of correlation is this?

    • Perfect positive correlation
    • Positive correlation
    • No relationship
    • Negative correlation
  15. A student uses a line of best fit to estimate a value beyond the range of the data. What is this called?

    • Sampling
    • Rounding
    • Interpolation
    • Extrapolation
  16. What is a common weakness in the presentation of graph axes?

    • Truncated scale
    • Logarithmic scale
    • Continuous scale
    • Inverted scale
  17. Which statement about the median of the whole numbers 1 to 100 is correct?

    • The median is 50
    • The median is 50.5
    • The median is 100
    • The median is 1
  18. Q1 is 12 and Q3 is 30. What is the interquartile range?

    • 30
    • 18
    • 42
    • 2.5
  19. A graph vertical axis starts at 80 instead of 0. What effect does this have?

    • Inverts data
    • Reduces accuracy
    • Hides trends
    • Exaggerates changes
  20. Which statistical measure is less affected by an extreme outlier?

    • Total sum
    • Median
    • Arithmetic average
    • Mean

All AQA Geography quizzes