# chi-square test

### noun Statistics.

a test devised by Karl Pearson that uses the quantity chi-square for testing the mathematical fit of a frequency curve to an observed frequency distribution.

Also chi-squared test [kahy-skwaird] /ˈkaɪˌskwɛərd/.

## Origin of chi-square test

First recorded in 1935–40

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## chi-square test

### noun

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## chi-square test

### n.

The American Heritage® Stedman's Medical Dictionary
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