---
title: "Descriptive statistics - Free calculators | Numequo"
description: "Summarize datasets with weighted averages, quartiles and visual explanations. Includes the formula and practical examples."
canonical: "https://www.numequo.com/math/descriptive-statistics/"
locale: "en"
---
[Numequo](https://www.numequo.com/) › [Math](https://www.numequo.com/math/)

# Descriptive statistics

Summarize datasets with weighted averages, quartiles and visual explanations.

## Available tools

- [Weighted Average Calculator](https://www.numequo.com/math/descriptive-statistics/weighted-average-calculator/) - Calculate a weighted average and understand the contribution of every value and coefficient.
- [Quartile and Interquartile Range Calculator](https://www.numequo.com/math/descriptive-statistics/quartile-interquartile-range-calculator/) - Sort a dataset, calculate its quartiles and IQR, and explore its distribution on a visual scale.

## Summarize datasets with weighted averages, quartiles and visual explanations.

A single average can hide important differences. Quartiles and weighted averages make a dataset’s distribution easier to read.

Keep the original values available and choose weights deliberately: a coefficient changes the influence of every observation.

### Tools to explore next

- [Weighted Average Calculator](https://www.numequo.com/math/descriptive-statistics/weighted-average-calculator/) - Calculate a weighted average and understand the contribution of every value and coefficient.
- [Quartile and Interquartile Range Calculator](https://www.numequo.com/math/descriptive-statistics/quartile-interquartile-range-calculator/) - Sort a dataset, calculate its quartiles and IQR, and explore its distribution on a visual scale.
- [Rounding Calculator](https://www.numequo.com/math/numbers-notation/rounding-calculator/) - Round a number to a chosen decimal place and see which digit determines the result.

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