Lesson Y9-U05-L08

Y9-U05-L08 Analysing Data and Spotting Patterns Quiz: KS3 Geography, Unit 17

20 questions

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Lesson Y9-U05-L08, Analysing Data and Spotting Patterns: 20 multiple choice questions for the KS3 Geography (National Curriculum), Unit 17: Year 9: Thinking Like a Geographer: Fieldwork and Geographical Enquiry, written with Revision Ninja.

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The 20 questions

  1. How do you calculate the mean of a set of readings?

    • Subtract the lowest reading from the highest reading
    • Add all the readings together, then divide by how many readings there are
    • Find the reading that appears most often in the set
    • Put the readings in order, then take the middle reading and write it down in your book
  2. What is the median of a dataset?

    • The middle value when the numbers are put in order
    • The value that appears most often in the dataset
    • The difference between the highest and lowest values
    • The total of all the values divided by their count
  3. What is the mode of a dataset?

    • The value that appears most often in the dataset
    • The middle value when the numbers are placed in order
    • The difference between the highest and lowest values
    • The total of all the values divided by how many there are
  4. How do you calculate the range of a dataset?

    • Subtract the lowest value from the highest value
    • Add the highest value to the lowest value
    • Find the value that appears most often in the set
    • Divide the highest value by the lowest value
  5. Find the median of 3, 5 and 9.

    • 5
    • 3
    • 17
    • 9
  6. Find the range of 14, 20 and 26.

    • 6
    • 12
    • 40
    • 20
  7. What kind of correlation is 'as X rises, Y rises'?

    • Negative correlation
    • Anomalous correlation
    • Positive correlation
    • No correlation
  8. What does a scatter graph with no correlation look like?

    • Points all lying on one single horizontal line
    • Scattered points with no clear trend or line
    • Points falling neatly from top-left to bottom-right
    • Points rising neatly from bottom-left to top-right
  9. A noise reading of 30 dB sits far below the rest of the set. What is it called?

    • An anomaly
    • A median
    • A correlation
    • A range
  10. Why can one anomaly distort the mean?

    • It makes the range of the dataset become zero
    • It is always the value that appears most often in the set and the middle of the data
    • It is far from the others, so it pulls the mean up or down
    • It changes the order of the numbers so the median moves
  11. Calculate the mean of 6, 8 and 10.

    • 24
    • 10
    • 8
    • 6
  12. Find the median of 4, 6 and 8.

    • 6
    • 18
    • 8
    • 4
  13. Find the mean, median and range of the values 4, 6, 6 and 8.

    • Mean 5, median 6, range 4
    • Mean 6, median 8, range 2
    • Mean 6, median 6, range 4
    • Mean 6, median 6, range 8
  14. A river's width is 1.6 m at 0 km and 4.7 m at 5 km downstream. Which correlation does this show?

    • Negative correlation, because the width is always smaller at the mouth
    • Positive correlation, as distance downstream rises the width rises too
    • No correlation, because the two values are different
    • Negative correlation, as distance downstream rises the width falls
  15. As distance from a city rises, land value falls. What type of correlation is this?

    • No correlation
    • Positive correlation
    • Anomaly correlation
    • Negative correlation
  16. Shoe size is compared with maths test score for a class. What type of correlation is usually expected?

    • Positive correlation
    • No correlation
    • Strong positive correlation
    • Negative correlation
  17. Footfall falls from about 180 near the station to about 40 far away. What is the correlation?

    • No correlation, because footfall values are always large
    • Positive correlation, because the station is the largest place
    • Positive correlation, as distance from the station increases footfall increases
    • Negative correlation, as distance from the station increases footfall decreases
  18. Which is a good way to describe the strength of a correlation on a scatter graph?

    • The more colours on the graph, the stronger the correlation, so use bright colours always
    • The closer the points lie to a straight line, the stronger the correlation
    • The more points on the graph, the weaker the correlation
    • The larger the range, the stronger the correlation
  19. Why can a strong correlation not prove that one variable causes the other?

    • Strong correlations never occur in real geographical data
    • Correlations are always calculated using the median only
    • Two variables can be linked without one causing the other
    • Scatter graphs can only show data from one single site
  20. Which measure shows how spread out a set of values is, from lowest to highest?

    • The median
    • The mean
    • The range
    • The mode

All KS3 Geography quizzes