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Foundation November 2016 Unit 2 Q6

WJECFoundationCurrent spec3 marksAverages (including IQR)

6. A sixth number is to be added to the list below.

12     6     15     3     5

When the sixth number is added, the range increases by 2.

Write down the two possible values for the sixth number.
You must show all your working. [3]