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Conditional Probability

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Question 65
a.

State the term used to describe two events XXX and YYY when P(X∩Y)=0P(X \cap Y) = 0P(X∩Y)=0.

[1]
b.

The events AAA and BBB are independent with P(A)=23P(A) = \frac{2}{3}P(A)=32​ and P(A∪B)=45P(A \cup B) = \frac{4}{5}P(A∪B)=54​.

Find

P(B)P(B) P(B)

[3]
c.

P(A∩B′)P(A \cap B')P(A∩B′)

[2]
d.

P(A′∣B)P(A' | B)P(A′∣B)

[2]

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