Mathematics for IGCSE & O level - Statistical Diagrams (Section 6 - No. 42)
If the mean of a dataset is 50 and the median is 60, what can you infer about the data's skewness?
The data is symmetrical.
The data is skewed to the left.
The data is skewed to the right.
The data has no mode.
Explication
When the mean is less than the median, it indicates left skewness.