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概率理论误差原理的根据是概率(或几率probability)理论。为了说明误差原理,本文首先介绍与误差原理有关的那部分概率理论: (1)假设一个事件能够以两个方式出现。如果这个事件在同样条件下出现许多次数,那么一个方式出现的次数对事件总的出现次数之比就会接近一定的极限。在总的出现次数无限地增加下,这个比就是事件以指定方式出现的概率。 (2)假如一个事件能以多种方式出现,而每个方式出现的可能性是相等的。如果某一定数的方式是“适意的”,那么这些适意方式数对总方式数之比就是事件
Probability theory is based on the principle of error probability (probability probability) theory. To illustrate the error principle, this paper first introduces the theory of probability associated with the error principle: (1) Suppose an event can occur in two ways. If this event occurs many times under the same conditions, the ratio of the number of occurrences of one method to the total number of occurrences of the event approaches a certain limit. With an infinite increase in the total number of occurrences, this ratio is the probability that an event will occur in the specified manner. (2) If an event can appear in many ways, each way is likely to be equal. If a certain number of ways is “desirable”, then the number of these appropriate ways to the ratio of the total number of ways is the event