Why do we multiply probabilities when a question asks for "both counters are blue"?
Because the outcome requires the first counter is blue and the second counter is blue.
Because the outcome requires the first counter is blue or the second counter is blue.
Because the outcome requires the first counter is blue minus the second counter is blue.
Because the outcome requires the first counter is blue added to the second counter is blue.
Flashcards for OCR GCSE Maths Probability Equation Questions, covering the key formulae, methods and definitions you need to recall for the written papers. 16 cards, matched to the OCR GCSE Maths (J560) specification.
