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4.1.1 Probability (A-level only)

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Question 2

Sienna surveys 80 people about the musical instruments they play. They can choose from piano (PPP), violin (VVV), and guitar (GGG).

4 people play all three instruments. 7 people play piano and violin. 6 people play violin and guitar. 10 people play piano and guitar. 35 people play piano. 20 people play violin. 25 people play guitar.

a.

Draw a Venn diagram for this information.

[3]
b.

One of the people is selected at random. Given they play guitar, find the probability they do not play piano.

[3]
Markscheme

4.1.1 Probability (A-level only) Questions

  1. A Level
  2. /Maths
  3. /4.1.1 Probability (A-level only)

111 exam-style questions on WJEC A Level Maths 4.1.1 Probability (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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