## O Level E Maths Tuition: Statistics Question

Solution:

From the graph,

Median = 50th percentile = \$22,000 (approximately)

The mean is lower than \$22000 because from the graph, there is a large number of people with income less than \$22000, and fewer with income more than \$22000. (From the wording of the question, calculation does not seem necessary)

Hence, the median is higher.

The mean is a better measure of central tendency, as it is a better representative of the gross annual income of the people. This is because more people have an income closer to the mean, rather than the median.

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