# Comparing data sets in context

I can use measures of central tendency and spread to compare two data sets in context.

# Comparing data sets in context

I can use measures of central tendency and spread to compare two data sets in context.

## Lesson details

### Key learning points

- Data can be hard to compare when presented in lists and tables.
- Statistical summaries can be calculated to compare data sets.
- Statistical summaries do not always provide enough information by themselves.

### Common misconception

Pupils may feel that one statistical summary is enough to compare two data sets.

Highlight to pupils that the more information you know, the better your understanding of a data set and therefore a more comprehensive comparison can take place. Compare the means of {-120, -100, -50, 0, 1000} and {145, 145, 146, 147, 147}.

### Keywords

A statistical summary - sums up the features of a data set. It may contain the average (mean, median and/or mode) which measures the central tendency. It may also contain the range which measures the spread.

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Video

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