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Statistics Revision

Data, averages & probability — part of Maths on KODO.

AQA Edexcel OCR WJEC SQA

Statistics is a core area of Maths in the national curriculum. It covers essential concepts that build the foundation for GCSE study and beyond.

This topic includes subtopics such as Mean, Median, Mode, Range and more. Each area is tested with multiple-choice questions that include detailed explanations to deepen your understanding.

Quick Reference

Mean of 2, 4, 6, 85 (sum 20 ÷ 4)
Median of 3, 5, 7, 9, 117 (middle value)
Probability of a coin landing heads1/2 or 0.5
Range of 4, 7, 2, 97 (9 − 2)

Key Definitions

Mean
Add all values and divide by how many there are.
Median
The middle value when data is arranged in order.
Mode
The value that appears most often.
Range
The difference between the largest and smallest values.
Probability
A measure of how likely an event is to happen, from 0 (impossible) to 1 (certain).

What You'll Cover

Mean
Median
Mode
Range
Probability (single event)
Bar charts interpretation
Probability
Pie charts and bar charts
Scatter graphs

Test Yourself — Statistics

Try 3 quick questions. No account needed.

Quick Quiz

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Memory Tricks & Mnemonics

"Mean is mean because you have to do the most work" (add everything, then divide)

Distinguish mean from median and mode.

"Median = Middle, Mode = Most"

The first letters match to help you remember which is which.

Probability = favourable outcomes ÷ total outcomes

The formula for theoretical probability of equally likely events.

Frequently Asked Questions

What is Mean in Maths Statistics?+
Mean is a key subtopic within Statistics in Maths. It's covered in the KS3 curriculum and tested in assessments. KODO provides multiple-choice questions with detailed explanations to help you master this area.
What is Median in Maths Statistics?+
Median is a key subtopic within Statistics in Maths. It's covered in the KS3 curriculum and tested in assessments. KODO provides multiple-choice questions with detailed explanations to help you master this area.
What is Mode in Maths Statistics?+
Mode is a key subtopic within Statistics in Maths. It's covered in the KS3 curriculum and tested in assessments. KODO provides multiple-choice questions with detailed explanations to help you master this area.
What is Range in Maths Statistics?+
Range is a key subtopic within Statistics in Maths. It's covered in the KS3 curriculum and tested in assessments. KODO provides multiple-choice questions with detailed explanations to help you master this area.
What is Probability (single event) in Maths Statistics?+
Probability (single event) is a key subtopic within Statistics in Maths. It's covered in the KS3 curriculum and tested in assessments. KODO provides multiple-choice questions with detailed explanations to help you master this area.
How many Statistics questions does KODO have?+
KODO's Statistics question bank is AI-powered and continuously expanding. Questions are multiple-choice with four options and include detailed explanations for every answer.
Is Statistics revision on KODO free?+
Yes! KODO offers free daily quiz sessions for all topics including Statistics. Revision cards are completely free with no limits. Pro users get unlimited quizzes and additional features.

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