# Statistics notes

> CAPS-aligned study notes for Statistics in Grade 11 Mathematics. Browse the sections below for explanations, worked examples and exam preparation.

- Page: https://www.hlayiso.com/grade-11/mathematics/notes/statistics

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## Sections in Statistics

Each entry shows the free preview (about 200 characters). Create a free Hlayiso account to read the full notes, practise every question and track your progress.

- [Measures of Central Tendency & Dispersion](https://www.hlayiso.com/grade-11/mathematics/notes/statistics/measures-of-central-tendency-and-dispersion) — Measures of Central Tendency & Dispersion Statistics is about making informed decisions based on data. To summarise a data set meaningfully, you need numbers that describe where the data is centred…
- [Ogives & Frequency Polygons](https://www.hlayiso.com/grade-11/mathematics/notes/statistics/ogives-and-frequency-polygons) — Ogives & Frequency Polygons Grouped data can be represented graphically in several ways. Beyond histograms, you need to understand frequency polygons (which show the shape of the distribution) and…
- [Variance, Standard Deviation & Outliers](https://www.hlayiso.com/grade-11/mathematics/notes/statistics/variance-standard-deviation-and-outliers) — Variance, Standard Deviation & Outliers While measures of central tendency (mean, median, mode) tell us where the centre of the data lies, they say nothing about how spread out the data is. Two data…

## Other Mathematics topics

- [Algebraic expressions, equations and inequalities](https://www.hlayiso.com/grade-11/mathematics/notes/algebraic-expressions-equations-and-inequalities)
- [Number patterns](https://www.hlayiso.com/grade-11/mathematics/notes/number-patterns)
- [Finance, growth and decay](https://www.hlayiso.com/grade-11/mathematics/notes/finance-growth-and-decay)
- [Functions and graphs](https://www.hlayiso.com/grade-11/mathematics/notes/functions-and-graphs)
- [Probability](https://www.hlayiso.com/grade-11/mathematics/notes/probability)
- [Analytical Geometry](https://www.hlayiso.com/grade-11/mathematics/notes/analytical-geometry)
- [Trigonometry](https://www.hlayiso.com/grade-11/mathematics/notes/trigonometry)
- [Euclidean Geometry](https://www.hlayiso.com/grade-11/mathematics/notes/euclidean-geometry)

## Frequently asked questions

### What is covered in Statistics for Grade 11 Mathematics?

The Statistics section covers all key concepts from the Grade 11 Mathematics CAPS curriculum, including detailed explanations, worked examples, and exam preparation tips.

### Are the Statistics notes free?

Yes. Each section has a free preview, and a free Hlayiso account lets you read the full notes.

### How do these notes help with exam preparation?

Our Statistics notes are CAPS-aligned and include worked examples, common mistakes to avoid, and exam tips — everything you need to prepare for your Grade 11 Mathematics exams.

### Are there quizzes for Statistics?

Yes. Hlayiso has quizzes for Statistics in Grade 11 Mathematics. Test your understanding after reading the notes.

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