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2.3.2 Diagrams to assist probability calculations

Which diagram is best for a sequence of events?

A

Different totals have different numbers of ordered outcomes.

B

0.7(0.3)+0.3(0.7)=0.420.7(0.3)+0.3(0.7)=0.420.7(0.3)+0.3(0.7)=0.42.

C

A tree diagram.

D

The Venn diagram addition rule is P(A∪B)=P(A)+P(B)−P(A∩B)\boxed{P(A\cup B)=P(A)+P(B)-P(A\cap B)}P(A∪B)=P(A)+P(B)−P(A∩B)​.

2.3.2 Diagrams to assist probability calculations Flashcards

  1. A Level
  2. /Maths
  3. /2.3.2 Diagrams to assist probability calculations

Flashcards for OCR A Level Maths 2.3.2 Diagrams to assist probability calculations, covering the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3. 20 cards, matched to the OCR A Level Maths (H240) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.