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Class 7 Maths — Data handling

Find the mean, median, mode and range of a set of data, and read information off a bar chart.

Name: ________________________

  1. 1.The mean of five numbers is 14. What do the five numbers add up to?

  2. 2.Find the range of 33, 18, 47 and 22.

  3. 3.Find the mode of 4, 6, 4, 9, 4 and 6.

  4. 4.A bar graph shows 4 red cars, 7 blue cars, 5 white cars and 4 black cars. How many cars are there altogether?

  5. 5.Match each set of numbers to its mean.

    • 2, 4, 6
    • 10, 20, 30, 40
    • 5, 5, 5, 5
    • 1, 2, 3, 4, 5
    • 8, 12
    • 10
    • 3
    • 4
    • 5
    • 25

  6. 6.This bar chart shows how many books a library lent out on four days. Tap the bar for the day it lent the fewest.

    Write the number of the part.

    1234

  7. 7.Seven children scored 3, 5, 5, 7, 8, 9 and 12. What is the median score?

  8. 8.Which average is the value that appears most often?

    • a) The median
    • b) The mode
    • c) The range
    • d) The mean

Answer key — Class 7 Maths — Data handling

  1. 1. 70
  2. 2. 29
  3. 3. 4
  4. 4. 20
  5. 5. 2, 4, 6 → 4; 10, 20, 30, 40 → 25; 5, 5, 5, 5 → 5; 1, 2, 3, 4, 5 → 3; 8, 12 → 10
  6. 6. 3 — Wednesday
  7. 7. 7
  8. 8. b) The mode