A bag contains counters of four different colours: Red, Blue, Green and Yellow.
The table shows the probabilities of picking a Red, Blue or Green counter.
| Colour | Red | Blue | Green | Yellow |
|---|---|---|---|---|
| Probability | 0.12 | 0.38 | 0.2 |
Complete the table.
Sarah picks a counter from the bag 200 times, replacing it each time.
Work out an estimate for the number of times she picks a Blue counter.
Practise OCR GCSE Maths Probability with exam-style questions for Foundation and Higher tier. 100 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.