或然率（或然比）也叫概率，几率：是对可能性大小的科学说明和测定。 或然率是所要测定的偶然事件的数目与全部可能发生的偶然事件总数之间的比率。
n. presumption
misc. law of probability
准确的计算出或然率。
模糊理论可包含上述方法，如或然率，数学逻辑，测度理论。
Fuzzy logic theory overlaps with the above methods and with the probability, mathematical logic, and measure theory.
关键的问题是相等的或然率加上理性的群众，出来的往往是必然的想法。
The key problem is that equating probabilism with reason crowds out consequential thinking.
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