Analysing different statistical representations
I can use the different statistical representations to compare two sets of data.
Analysing different statistical representations
I can use the different statistical representations to compare two sets of data.
Lesson details
Key learning points
- Statistical summaries can be compared to graphical representations of data.
- Statistical summaries can be used to produce a sketch of what the graphical representation could be.
- Different statistical representations can help form a more complete picture.
Common misconception
The mean and median will always be close to the most frequent values (or peaks) in a dataset.
The mean and median may be at the lower or lowest frequency parts of a distribution. This is especially likely if the data is bimodal.
Keywords
Statistical summary - A statistical summary sums up the features of a data set. It may contain the averages (mean, median, mode). It may also contain the range.
Central tendency - is a summary measure that attempts to describe a whole dataset with a single value that represents the middle or centre of its distribution.
Spread - The spread/dispersion of data values describes how far apart the pieces of data are.
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).
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