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Probability

Probability

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Question 1

The Venn diagram below shows three events AAA, B B\,B and CCC.

Venn diagram for question 1 showing three overlapping circles A, B, and C within a rectangular sample space. Circle A is on the left, B is in the middle, and C is on the right. The regions are labeled as follows: A only is 0.25; A and B only is 0.15; B only is 0.1; B and C only is p; C only is q; the intersection of all three A, B, and C is r; and the region outside all three circles is also labeled r.

a.

Write down two of the events that are mutually exclusive.

[1]
b.

Events A A\,A and B B\,B are independent.

The probability of C C\,C is 0.3

Find the values of ppp, q q\,q and rrr.

[5]
Markscheme

Probability Questions

  1. AS Level
  2. /Maths
  3. /Probability

34 exam-style questions on Edexcel AS Level Maths Probability, covering 5.1 Calculating Probabilities, 5.2 Venn Diagrams, 5.3 Mutually Exclusive and Independent Events, and 5.4 Tree Diagrams. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank