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What conditional probability means

What conditional probability means

Conditional probability asks for the chance of event BBB given that event AAA has already happened. It is written P(B∣A)P(B|A)P(B∣A). The words "given that" tell you that the sample space has been restricted to outcomes where AAA occurs.

Conditional Probability Lesson

  1. IGCSE
  2. /Maths
  3. /Conditional Probability

Step-by-step lessons covering Oxford AQA IGCSE Maths Conditional Probability for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) format. Since content from any part of the specification can appear on either paper, keep number and algebra fluency sharp throughout the course rather than leaving it until near the exam.

Lessons