A bag contains counters of four different colors: Red, Blue, White, and Black. The table shows the probabilities of picking a Red, Blue, or White counter at random.
Complete the table to show the probability that a counter picked at random will be Black.
| Colour | Red | Blue | White | Black |
|---|---|---|---|---|
| Probability | 0.15 | 0.42 | 0.28 |
128 exam-style questions on Edexcel GCSE Maths Probability. Each one has a worked solution and a mark scheme showing where the marks go.