OCR GCSE Mathematics · J560
Specification 11.01a · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
Revise: Probability ScaleHalfway between them, 0.5 means evens, or an even chance. The event is just as likely to happen as not to happen. If a coin is fair, getting heads on one toss has an even chance.