
Definition of Chisquare distribution
1. Noun. (statistics) a probability distribution used in inferential statistics ¹
¹ Source: wiktionary.com
Medical Definition of Chisquare distribution
1. A distribution in which a variable is distributed like the sum of the the squares of any given independent random variable, each of which has a normal distribution with mean of zero and variance of one. The chisquare test is a statistical test based on comparison of a test statistic to a chisquare distribution. The oldest of these tests are used to detect whether two or more population distributions differ from one another. (12 Dec 1998)
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