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Probability

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Question 34

A biased spinner can land on 1, 2, 3 or 4.

The table shows the probabilities that the spinner will land on 2 and 4.

Number1234
Probability0.320.17
a.

The probability that the spinner will land on 1 is twice the probability that the spinner will land on 3.

Complete the table.

[2]
b.

Johnny is going to spin the spinner 200 times.

Work out an estimate for the number of times the spinner will land on 2.

[2]

Probability Questions

  1. GCSE
  2. /Maths
  3. /Probability

Practise OCR GCSE Maths Probability with exam-style questions for Foundation and Higher tier. 212 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank