Suggested answer to exercise: GPs' incomes, 1

Some GPs received an income of more than 250,00 per year from the National Health Service, whereas the average GP income was 94,000 per year.

Question 1: What do these figures suggest about the shape of the distribution of income for GPs?

Suggested answer

The average is considerably nearer to the lower end of the range (which must be greater than zero) than it is to the top.

The distribution must therefore be positively skew or skew to the right.

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Last updated: 31 July, 2006.

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