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2.3.2 Conditional probability (A-level only)

Card 1 of 23

What event does A∩BA\cap BA∩B represent?

A

The conditional probability formula is P(A∣B)=P(A∩B)P(B)\boxed{P(A\mid B)=\frac{P(A\cap B)}{P(B)}}P(A∣B)=P(B)P(A∩B)​​, provided that P(B)>0P(B)>0P(B)>0.

B

Both AAA and BBB occur.

C

Multiply the probabilities along its branches.

D

Use the row or column total for the condition.

Card 1 of 23

2.3.2 Conditional probability (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /2.3.2 Conditional probability (A-level only)

23 flashcards on AQA A Level Maths 2.3.2 Conditional probability (A-level only): the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards