The variables considered in a chi-squared test used to evaluate a contingency table is; A categorical variable
Reason:
A contingency table is a frequency table showing two variables
simultaneously. In an investigation of a communicable infection the two
variables in the table can be handwashing and the contracting the disease
The variables in a contingency table are categorical variables
A categorical variable is a qualitative variable that can have a limited
number of defined values and are assigned to the subjects of the study
based observation or experimental treatment
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