Probability based on addition rule using contingency table.
Contingency table Or Cross table or Pivot table:
|
|
Calorie Level
|
|
|
Fiber Type
|
High Calorie
|
Low Calorie
|
Totals
|
|
High Fiber
|
18
|
4
|
22
|
|
Medium Fiber
|
23
|
6
|
29
|
|
Low Fiber
|
12
|
21
|
33
|
|
Totals
|
53
|
31
|
84
|
What is the probability that a cereal would either high calorie or high fiber? In other words, what is P(high calorie or high fiber)?