The table shows information about the weekly earnings of 20 people who work in a shop - Edexcel - GCSE Maths - Question 5 - 2017 - Paper 1

Yes, I agree with Nadiya. The mean may not be the best average to represent the data due to the presence of extreme values in the frequency distribution.

In this case, there are several more individuals earning in the lower bracket (250 < x ≤ 350), which skews the mean upwards, potentially misrepresenting the overall wages of the group. Instead, the median might provide a better representation as it accounts for distribution without being affected by extreme values.