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Conditional Probability
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Tree diagrams and the meaning of "given"

Tree diagrams and the meaning of "given"

Probability tree for drawing two counters without replacement from a bag with 5 red and 3 blue counters, showing first and second branch probabilities A probability tree shows the possible routes through a sequence of events. In conditional probability, the second probability can depend on what happened first, so the branches after the first split may be different.

Conditional Probability Lesson

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

Step-by-step lessons on CCEA GCSE Maths Conditional Probability. Each one builds up to exam-style questions. Build fluency with number, ratio and algebra first, since geometry, probability and statistics topics rely on them, and leave extra time nearer the exam for Higher-tier problem-solving and multi-step reasoning questions.