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2 Statistics

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Question 312

The Venn diagram below shows the probabilities associated with three events AAA, B B\,B and CCC.

Figure for question 4

a.

Write down the two events that are mutually exclusive.

[1]
b.

Given that P(B∣C)=0.25P(B \mid C) = 0.25P(B∣C)=0.25, find the value of ppp.

[2]
c.

Given also that P(A∣B)=P(A)P(A\mid B)=P(A)P(A∣B)=P(A), find the value of q q\,q and the value of rrr.

[4]
Markscheme

2 Statistics Questions

  1. A Level
  2. /Maths
  3. /2 Statistics

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