Cross-tabulation quantifies relationship between Churn and Voice Mail Plan
First column: total Voice Mail Plan = “no”
Second column: total Voice Mail Plan = “yes”
First row: total Churn = “False”
Second row: total Churn = “True”
Voice Mail Plan has 842 + 80 = 922 customers
Remaining 2,008 + 403 = 2,411 customers not in plan