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​Q14: Question – Paper 3 – November 2017

Helpful Links

Content: ​

• Venn Diagrams – Placing Values
• Venn Diagrams – Probability 
• Solving Linear Equations​

Quizzes:

• Venn Diagrams
• Solving Linear Equations

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Question

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14)
​In the Venn diagram

• ξ represents 31 students in a class
• C is students who have a cat
• D is students who have a dog

a) One student from the class is picked at random.
​Work out the probability that the student has a dog.

[3 marks]

b) One of the students who has a cat is picked at random.
​Work out the probability that this student has a dog.

[1 mark]

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