Mathematics — first biennium · Lesson
Two groups can have the same centre but different spread. The range measures the distance between maximum and minimum.
Prerequisites: Mean, median and mode
Goal: Understand range and compare datasets with the same centre but different spread.
In this lesson: Understand range and compare datasets with the same centre but different spread.
New concept: Spread describes how dispersed the data are. The range is the simplest measure: maximum−minimum. Two datasets can have the same mean but different ranges, so the same centre does not imply the same distribution.
How to proceed: Compute maximum minus minimum for each group. The same mean does not imply the same distribution.
You can already assume: Mean, median and mode.
Completed exercises: 0/5 · Correct on first attempt: 0
Compute maximum minus minimum for each group. The same mean does not imply the same distribution.
Data / situation: A: 5, 6, 7, 8, 9. B: 3, 5, 7, 9, 11.
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