Probability and Two-Way Tables — Interactive Lesson (Ages 14–16)

How do you find a probability from a two-way table? This 34-slide interactive lesson teaches probability with two-way tables, from reading a table to conditional probability.

Mastering Probability and Two-Way Tables at GCSE

Students learn to interpret and analyse data in two-way tables, where one variable is shown in the rows and the other in the columns. They use row and column totals to find missing values, then use probability as the number of favourable outcomes divided by the total number of outcomes, usually the grand total. The lesson finishes with conditional probability: the probability of an event given that another event has already occurred.

What’s Included

• 34-slide interactive lesson on probability and two-way tables
• Learning objectives on interpreting tables and calculating conditional probability
• Worked examples, including a table of pets owned by children
• Row-total and column-total questions to find missing values
• Sixteen fill-in-the-blank tasks and quiz questions with instant feedback

Key Benefits for Students

• Makes two-way tables easy to read
• Shows how to find missing values using totals
• Builds up to conditional probability
• Instant feedback on answer questions

Why Teachers Love It

• No prep — ready for whole-class teaching on an interactive whiteboard
• A long, structured lesson that can be split across sessions
• Self-marking questions support independent practice
• Suits teaching, revision and homework
• Targets a topic that regularly appears on GCSE papers

Love this? You’ll love…

• Conditional Probability with Venn Diagrams — Interactive Lesson & Worksheet (Ages 14–16)
• Probability and Independent Events — Interactive Lesson & Worksheet (Ages 14–16)
• Probability of Mutually Exclusive Events — Interactive Lesson & Worksheet (Ages 14–16)

A dependable addition to a GCSE probability topic, giving students a clear method for tables that appear regularly in exams. Confidence here supports work on Venn diagrams, independent events and conditional probability.

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FAQ

What year group is this for? Years 10–11 (ages 14–16), GCSE.

Does it cover conditional probability? Yes — using two-way tables.

Is it self-marking? Yes, with instant feedback on the questions.