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Geographical skills theory




Statistical testing

These tell you if there is a difference or correlation between 2 sets of data as
well as saying the degree of the difference or correlation.

Mann Whitney U test

Tests the difference between medians of 2 sets of data and can be used when…

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Geographical skills theory




Advantages
- Can test associations between variables
- Identifies differences between observed and expected variables
Disadvantages
- Can't use percentages
- Data must be numerical
- Categories of 2 are not good to compare
- The observations must be 20+
- Quite complicated to get right due…

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