There are some socks in a drawer. The table shows the number of socks of each colour.
| Colour | Black | White | Grey | Blue |
|---|---|---|---|---|
| Frequency | 11 | 5 | 8 | 6 |
A sock is selected at random.
Write down the probability that the sock is grey.
Write down the probability that the sock is not black.
Practise OCR GCSE Maths Probability with exam-style questions for Foundation and Higher tier. 212 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.
