發(fā)布時(shí)間：2018-06-13 19:47

  本文選題：墨菲 + 定律　； 參考：《財(cái)會(huì)通訊》2013年11期

【摘要】：正一、墨菲定律基本觀點(diǎn)在數(shù)理統(tǒng)計(jì)中,有一條重要的統(tǒng)計(jì)規(guī)律:假設(shè)某意外事件在一次實(shí)驗(yàn)(活動(dòng))中發(fā)生的概率為p(p0),則在n重獨(dú)立實(shí)驗(yàn)(活動(dòng))中,該意外事件至少有一次發(fā)生的概率為pn=1-(1-p)n。由此可知,無(wú)論概率p多么小(即小概率事件),當(dāng)實(shí)驗(yàn)次數(shù)n趨向于無(wú)窮時(shí),pn會(huì)越來(lái)越趨于l,即成為必然事件。這一定律是工程師墨菲
[Abstract]:First, the basic viewpoint of Murphy's law in mathematical statistics, there is an important statistical rule: assuming that the probability of an accident in an experiment (activity) is p0, in the n-fold independent experiment (activity), The probability of at least one occurrence of the accident is pnn 1-1-1-pN. It can be seen that no matter how small the probability p is (that is, small probability event), when the experiment number n tends to infinity, the probability p n will become more and more l, that is to say, it will become an inevitable event. This is the law of engineer Murphy.
【作者單位】： 重慶理工大學(xué)財(cái)會(huì)研發(fā)中心;
【分類號(hào)】：F231.6
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本文編號(hào)：2015203