Key learning points

1. The mode is a useful measure of central tendency for certain data sets.
2. The median is a useful measure of central tendency for certain data sets.
3. The mean is a useful measure of central tendency for certain data sets.

Keywords

• Measure of central tendency - A measure of central tendency is a summary measure that attempts to describe a whole set of data with a single value that represents the middle or centre of its distribution.

• Statistical summary - A statistical summary sums up the features of a data set.

Common misconception