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贝努利试验也叫独立重复试验,它在概率论中占有相当重要的地位,其特点是每次试验的结果只有两种,且每次试验相互独立,但要注意两种结果出现的概率是不一定相同的.课本上已经给出了n次独立重复试验中某事件恰巧发生k次的概率计算公式为Pn(k)=Cknpk(1-p)n-k,其实它正好是二项式[(
Bernoulli test is also called independent repeat test, which occupies a very important position in probability theory. Its characteristic is that each test has only two results, and each test is independent, but it should be noted that the probability of the two results is It is not necessarily the same. The textbook has given the probability that an event happening k times happens in n independent repeat trials. The formula is Pn(k)=Cknpk(1-p)nk, which is actually a binomial expression [(