“probability mass function”的概念、定义、翻译、参考文献-科学参考

单词	probability mass function
释义	probability mass function [´präb·ǝ`bil·ǝd·ē ¦mas ´fǝŋk·shǝn] ^STATISTICS A function which gives the relative frequency of each possible value of the random variable in an experiment involving a discrete set of outcomes. Abbreviated p.m.f.
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