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Comparing distributions and variability

Mathematics — first biennium · Lesson

Biennium · Common core

Comparing distributions and variability

Comparing distributions requires more than one centre measure: read centre, spread and possible extreme values together.

Key idea
Formula matematica
Similar example
Formula matematica

Prerequisites: Introductory variability

Goal: Compare centre and spread of simple distributions.

What you need to know before the exercises

In this lesson: Compare centre and spread of simple distributions.

How to proceed: Compute centre first and then spread: two datasets with the same mean can have very different shapes.

You can already assume: Introductory variability.

Try it now

Compare two distributions with the same mean but different spread.

Guided

Completed exercises: 0/5 · Correct on first attempt: 0

How to reason

Compute centre first and then spread: two datasets with the same mean can have very different shapes.

Data / situation: A: 8, 9, 10, 11, 12. B: 6, 8, 10, 12, 14.

Your competency map

What you need to know for Comparing distributions and variability

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Current topic Strong skill Review due Needs reinforcement To be mastered Optional support

Relationships: solid line = required · dashed line = recommended · dotted line = reinforcement.

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