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Maths

Mean, mode and median

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The range

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

  • Here are Kieran's results again:
  • 10  14  10  12  10  11  12  10  11  9  12

Kieran's highest number is 14, and the lowest 9.

Therefore, the range is 14 - 9 = 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.

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