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Median value calculation
Calculate the median value for the GNI data in Figure 6.
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Marking points
- 1 Final answer is 6030.
- 2 Working ranks or identifies the middle value if the answer is not correct.
Full-mark answer
Order the values: 4 620, 5 180, 5 530, 5 790, 6 030, 7 130, 7 850, 9 070, 12 420. The middle value is 6 030 US per person per year.
Why this answer loses marks
Calculating the mean instead of the median.
The examiner report notes some students lost marks by calculating the mean rather than ordering the values and finding the middle one.