There are black pens, blue pens, red pens and green pens in a drawer. A pen is picked at random from the drawer. The table shows the probabilities that the pen will be black, will be blue and will be red.
| Colour of Pen | Black | Blue | Red | Green |
|---|---|---|---|---|
| Probability | 0.35 | 0.45 | 0.05 |
Complete the table to show the probability that the pen will be green.
