True or false: When constructing a contingency table, the data in the leftmost and upmost cells must be nominal or categorical data

True or false: Contingency tables are never used for probability data

True or false: When constructing a contingency table, the total data tally of the rows must equal the total data tally of the columns

True or false: Commonly, categorical data is used in contingency tables

True or false: In a contingency table, the data shows frequency but only in combinations of the variables in the X and Y columns

True or false: When constructing a contingency table, the data in the rightmost and the bottom cells is the “left-over” data

True or false: When constructing a contingency table, the data in the rightmost and bottom cells is the total tally of the frequency of data combinations

True or false: In a contingency table, two variables are shown simultaneously to summarize the relationship between such data

True or false: When one wants to classify the outcomes of a bi-variate data set (two sets of data), he/she should use a contingency table. 

True or false: When constructing a contingency table, the data in the center cells must be nominal data