Mean, median and range

Choose and calculate useful summaries of field observations.

Skills resources are shared. Check your qualification page for its specific assessment conditions.

Mean, median and range

Each observation uses the same area. One count is much larger than the others.

SiteLitter items in a 10 m² quadrat
Site 18
Site 29
Site 310
Site 410
Site 511
Site 623
Fictional field observations All values are synthetic.
Resource description

Fictional field observations

1. What is the mean count?

2. What is the median count?

3. What is the range?

4. Which summary is less influenced by the unusually high count?

Choose an answer

Synthetic data and original mapping. Practice does not count as required fieldwork.

Use the resource carefully

State the unit and the part of the resource you used. A pattern in a fictional dataset is evidence for that exercise; it does not establish a fact about a real place.

Check whether an explanation is supported by the data or needs additional geographical knowledge. For statistical tasks, a calculated result does not establish causation or significance by itself.

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