英语词汇“chi-square distribution”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	chi-square distribution
释义	chi-square distribution noun : a probability density function that gives the distribution of the sum of the squares of a number of independent random variables each having a normal distribution with zero mean and unit variance, that has the property that the sum of two random variables with such a distribution also has one, and that is widely used in testing statistical hypotheses especially about the theoretical and observed values of a quantity and about population variances and standard deviations
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