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Related Concept Videos

Chi-square Analysis02:46

Chi-square Analysis

The chi-square test is a statistical hypothesis test. It is used to check whether there is a significant difference between an expected value and an observed value. In the context of genetics, it enables us to either accept or reject a hypothesis, based on how much the observed values deviate from the expected values.
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...

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Reply: To PMID 21896884

Birgit Thilander1, Krister Bjerklin

  • 1University of Gothenburg, Sweden.

European Journal of Orthodontics
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No abstract available in PubMed .

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