noncentral chi-square distribution
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noncentral chi-square distribution
[‚nän¦sen·trəl ¦kī ‚skwer ‚dis·trə′byü·shən] (statistics)
The distribution of the sum of squares of independent normal random variables, each with unit variance and nonzero mean; used to determine the power function of the chi-square test.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.