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概率(Probability)概率是描述某事件发生的可能性本小的一个度量。如事件A发生的可能性大小,用实数来表示,就称为事件A的概率,常记为P(A),或简记为P。在一定条件下,肯定发生的事件称为必然事件,肯定不发生的事件称为不可能事件。可能发生也可能不发生的事件,称为随机事件或偶然事件。必然事件的概率等于1,不可能事件的概率等于0,随机事件的概率介于0与1之间。概率越接近1,表明某事件发生的可能性越大;概率越
Probability Probability is a measure that describes the probability of an event occurring. If the probability of occurrence of event A is large, it is represented by a real number. The probability of being called event A is always denoted as P(A), or abbreviated as P. Under certain conditions, an event that definitely occurs is called an inevitable event, and an event that does not happen is called an impossible event. Events that may or may not occur are called random or accidental events. The probability of an inevitable event is equal to 1, the probability of an impossible event is equal to 0, and the probability of a random event is between 0 and 1. The closer the probability is to 1, the more likely it is that an event will occur;