# Variance, Standard Deviation & Outliers

> This section measures spread with variance and standard deviation for ungrouped data, then identifies outliers. You will square deviations from the mean, take a square root back to the original…

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## Full notes

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## More in Statistics

- [Ogives & Frequency Polygons](https://www.hlayiso.com/grade-11/mathematics/notes/statistics/ogives-and-frequency-polygons) — Previous section
- [All Statistics sections](https://www.hlayiso.com/grade-11/mathematics/notes/statistics)

## Frequently asked questions

### What will I learn in "Variance, Standard Deviation & Outliers"?

This section covers Variance, Standard Deviation & Outliers as part of Statistics in Grade 11 Mathematics. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

### Is this section aligned with the CAPS curriculum?

Yes. All notes on Hlayiso, including "Variance, Standard Deviation & Outliers", are written against the official CAPS curriculum and ATP for Grade 11 Mathematics.

### What should I study after "Variance, Standard Deviation & Outliers"?

Continue with the next section in Statistics, or test your understanding with the interactive quiz linked to this section.

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