| 单词 | probability distribution |
| 释义 | > as lemmasprobability distribution probability distribution n. Statistics a function giving the probability of a value of x as a function of x; spec. one whose integral over an interval (if continuous) or sum over a range of values (if discrete) is the probability that the variate specified by it will lie within that interval or range. 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. 186 381 A probability distribution in which the ‘contributory causes’ are not independent, and not equally likely to give equal deviations in excess and defect. 1944 H. Reichenbach Philos. Found. Quantum Mech. xxiv. iii The specification of these values is therefore replaced by the statement of their probability distributions. 1991 Euromoney Jan. 89/3 Predict! uses complex Monte Carlo modelling which builds up probability distributions based on such programmed-in risk elements as trends in commodity prices and interest rates. < as lemmas |
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