But using multiple ‘1 in …’ statements is not recommended, as many people find them difficult to compare. For example, when asked the question, ‘Which is the bigger risk, 1 in 100, 1 in 10 or 1 in 1,000?’, around a quarter of people answered incorrectly: the problem is that the bigger number is associated with the smaller risk, and so some mental dexterity is required to keep things clear.
