The probability that a machine produces a faulty item is 0.04
The machine is going to produce 400 items
Work out an estimate for the number of items that will be faulty.
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.
