The bi-variate data can be expressed as a two-way frequency table. ‘T'wo-way frequency table tells the relationship between two variables. For example, two basket ball teams are playing at home and away grounds. The total number of wins for each team both home and away can be calculated and also the home and away win rate can be calculated simultaneously. Baseball teams for the high school and college play at the same stadium. Results are tabulated as

\(\begin{array}{|c|c|}\hline \text{Teams} & \text{Home} & \text{Away} & \text{Total} \\ \hline \text{WMHS} & (11,16) & (8,14) & (19,30) \\ \hline \text{BMC} & (18,26) & (18,30) & (36,56) \\ \hline \text{Place} & \text{WMHS} & \text{BMC} & \text{Total} \\ \hline \text{Home} & (11,16) & (18,26) & (29,42) \\ \hline \text{Away} & (8,14) & (18,30) & (26,44) \\ \hline \end{array}\)

WMHS stands for west mountain high school and BMC stands for big mountain college. The order pair is (win, total matches)