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Probability

Probability

Medium
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Question 11

For the events A A\,A and BBB, P(A∩B′)=0.32,P(A′∩B)=0.11P(A \cap B') = 0.32, P(A' \cap B) = 0.11P(A∩B′)=0.32,P(A′∩B)=0.11 and P(A∪B)=0.65P(A \cup B) = 0.65P(A∪B)=0.65.

a.

Draw a Venn diagram to illustrate the complete sample space for the events A A\,A and BBB.

[3]
b.

Write down the value of P(A)P(A)P(A) and the value of P(B)P(B)P(B).

[3]
c.

Find P(A∣B′)P(A | B')P(A∣B′).

[2]
d.

Determine whether or not A A\,A and B B\,B are independent.

[3]
Markscheme

Probability Questions

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

11 exam-style questions on Edexcel A Level Old Maths Probability. Each one has a worked solution and a mark scheme showing where the marks go.

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