🎲 Ages 9 to 16 · Class 5 to 10
Chance and data, made visible
Probability, averages and correlation: how to measure chance and what a pattern in data can and cannot tell you.
Probability and statistics are about making sense of uncertainty. These lessons use a bag of marbles to teach chance, bar charts to teach averages and a cloud of dots to teach correlation, so you can see how the numbers behave.
They also teach healthy habits of thought: a high correlation is not proof of cause, and an average can hide a lot of detail about the numbers behind it.
Interactive learning path
Probability and Statistics: 3 lessons to do
Choose a lesson and explore the idea with diagrams, controls and guided questions.
Covered topics
What this area covers
Where to start
- Ages 9 to 12: Start with the marble bag, then averages and the mean.
- Ages 12 to 14: Add percentages, then try the Plinko lab to see chance in action.
- Ages 14 to 16: Finish with correlation and the probability notes for Class 10.
Practise next
Want a teacher to guide you through probability and statistics? See Class 10 maths tuition. Teachers in our network teach every class and board, and a teacher is matched to the learner before anything is booked. We do not promise marks, grades or results.
FAQ
Probability and Statistics: questions people ask
What is the difference between probability and statistics?
Probability predicts how likely future events are from known chances. Statistics works backwards, using data you have collected to learn about what is going on.
What does correlation mean?
It measures how closely two sets of numbers follow a straight-line pattern together, from −1 to +1. It does not show that one causes the other.
Are these lessons free?
Yes. They run in your browser and need no account.
Which lesson is best for beginners?
Start with the marble bag lesson on probability. It needs only fractions.
Keep exploring
Other areas
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Number sense, fractions, percentages, shapes, counting and sets: the ideas every later topic stands on.
See the lessons →Algebra
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See the lessons →Calculus
Rate of change and area under a curve: the two big ideas of calculus, seen before they are symbolised.
See the lessons →Mind-Bending Maths
Puzzles, counting, binary, clock arithmetic and codes: the playful side of maths that school rarely has time for.
See the lessons →Start a conversation
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