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Conditional Probability

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Question 147

Events AAA and BBB are such that:

P(A∩B)=0.2 P(A \cap B) = 0.2 P(A∩B)=0.2 P(A′∩B′)=0.1 P(A' \cap B') = 0.1 P(A′∩B′)=0.1 P(B)=3P(A) P(B) = 3P(A) P(B)=3P(A)
a.

Find P(A)P(A)P(A).

[4]
b.

Find P(B∣A)P(B|A)P(B∣A).

[2]
c.

Determine if AAA and BBB are independent events.

[1]

Conditional Probability Questions

  1. A Level
  2. /Maths
  3. /Conditional Probability

Practise Edexcel A Level Maths Conditional Probability with exam-style questions for A Level Maths. 152 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank