There are red counters, blue counters, yellow counters and green counters in a bag. A counter is picked at random from the bag. The table shows the probabilities that the counter will be red, will be blue and will be yellow.
| Colour | Red | Blue | Yellow | Green |
|---|---|---|---|---|
| Probability | 0.2 | 0.3 | 0.4 |
Complete the table to show the probability that the counter will be green.
236 exam-style questions on OCR GCSE Maths Probability. Each one has a worked solution and a mark scheme showing where the marks go.