Quartiles after rescaling

Quartiles after rescaling

IP 2
3 marks
TGM Original Questions

The ordered data are \(2,4,6,8,10,12,14,16\). Use the median of each half to find the quartiles.

  1. Find the lower quartile \(Q_1\).[1]
  2. Find the upper quartile \(Q_3\).[1]
  3. Each data value \(x\) is replaced by \(3x-5\). Find the interquartile range of the new data.[1]

Solution:

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Answer:(a) \(5\) (b) \(13\) (c) \(24\)

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