Biostatistics series module 4: Comparing groups - categorical variables
Categorical variables are commonly represented as counts or frequencies. For analysis, such data are conveniently arranged in contingency tables. Conventionally, such tables are designated as r × c tables, with r denoting number of rows and c denoting number of columns. The Chi-square (χ2 ) probabil...
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Wolters Kluwer Medknow Publications,
2016-01-01T00:00:00Z.
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