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Higher June 2019 Unit 2 Q4

WJECHigherCurrent spec3 marksAverages (including IQR)

4. Look at the following set of four numbers.

5       8       10       13

Find another set of four numbers so that:

  • the range has increased by 2,
  • the mean remains the same,
  • the median has decreased by 1.

You may use some of the numbers from the original set, but not exactly the same four numbers. [3]

My four numbers are    ☐    ☐    ☐    ☐