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matlab
- 事件的频率 在一组不变的条件下，重复作n次试验，记m是n次试验中事件A发生的次数。 频率 为 f=m/n(Frequency of events Under a set of constant conditions, the N trial was repeated, and the number of events A occurred in the n test was recorded by M. Frequency is f=m/n)