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Maths

Mean, mode and median

The range

The range is the difference between the highest and lowest numbers.

  • Here are Kieran's results again:
  • 9 13 9 11 9 13 11 9 10 8 11

Kieran's highest number is 13, and the lowest 8.

Therefore, the range is 13 - 8 = 5.

Remember that to find the range of a set of numbers, you need to:

  • Find the lowest number.
  • Find the highest number.
  • Subtract the lowest number from the highest number.
  • The difference between the highest and lowest number is the range.

Back to Statistics and probability index

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