| 单词 | frequency distribution |
| 释义 | > as lemmasfrequency distribution frequency distribution n. a classification of the members of a population according to the value assumed for each member by some variable; a diagram or table showing the frequency with which a variable takes each of its possible values. ΘΚΠ the world > relative properties > number > probability or statistics > [noun] > distribution distribution1854 random distribution1882 frequency distribution1895 probability distribution1895 Poisson distribution1898 binomial distribution1911 Student's t-distribution1925 sampling distribution1928 probability density1931 Poisson1940 beta distribution1941 Cauchy distribution1948 geometric distribution1950 1895 K. Pearson in Philos. Trans. (Royal Soc.) A. 186 412 A method is given of expressing any frequency distribution by a series of differences of inverse factorials with arbitrary constants. 1911 G. U. Yule Theory of Statistics vi. 76 The manner in which the observations are distributed over the successive equal intervals of the scale is spoken of as the frequency-distribution of the variable. 1924 E. T. Whittaker & G. Robinson Calculus of Observ. viii. 165 The type of frequency distribution which is most familiar to the worker in experimental science is the distribution of the measures obtained by repeated measurements of the same observed quantity. 1948 New Biol. 4 29 We cannot interpret the change in mean until we have examined the type of scatter of the individual heights around the mean, that is what the statistician describes as the frequency distribution of heights. 1965 A. H. Roberts Statistical Ling. Anal. Amer. Eng. v. 44 Table 3 and Appendix VIII show the joint frequency distribution of word length by syllable and phoneme number. < as lemmas |
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