A better than even chance
看 SICP 的时候发现的. 不算个特定的短语吧, 就是 better than + an even chance, 不过第一次看的时候还没反应过来hh
Thus, if \(n\) passes the test for some random choice of \(a\), the chances are better than even that \(n\) is prime. If \(n\) passes the test for two random choices of \(a\), the chances are better than 3 out of 4 that \(n\) is prime. By running the test with more and more randomly chosen values of \(a\) we can make the probability of error as small as we like.
—Section 1.2.6 Example: Testing for Primality; subsection Probabilistic methods
挺有意思的说法: the chances are better than even.
主要就是 an even chance 是啥意思: an equally balanced probability (两两开). 当然, 除了 even chance, 还有 even probability/likelihood
- I'd say he has an even chance of winning the match.
- There was always better than an even chance of something like this happening.
- In a Duel they have an even chance for their lives.
- We have seen that there is at least an even likelihood that the babe was a boy.
一些个例句:
- Webster 对 odds-on 的第一个解释: having or viewed as having a better than even chance to win. E.g. the odds-on favorite
- There exists an invention that seems to have a better than even chance of rendering 40,000,000 radio sets obsolete and of upsetting the status quo of the broadcasting industry.
- Most expatriate (侨民) employees have a better than even probability of getting their hands on the steering wheel of a company car.