![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
Which statement best describes a contingency table?
A.
A contingency table must have equal numbers of rows and columns.
B.
A contingency table summarizes one variable that is classified according to two criteria.
C.
A contingency table requires at least 10 observations in each cell.
D.
A contingency table summarizes the frequencies of two variables.