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.
| Number | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| Probability | 0.27 | 0.19 |
The probability that the spinner will land on 1 is twice the probability that the spinner will land on 3.
Johnny is going to spin the spinner 200 times. Work out an estimate for the number of times the spinner will land on 2.
323 exam-style questions on OCR GCSE Maths Probability. Each one has a worked solution and a mark scheme showing where the marks go.