# Example 3

- Author:
- Walch Education

- Topic:
- Probability

Landen owns a delicatessen. He collected data on sales of his most popular sandwiches for one week and recorded it in the table below.
Each of the following statements describes a pair of events. For each statement, determine if the events seem to be independent based on the data in the table.
A random customer orders Landen’s club sandwich on country white bread.
A random customer orders the roasted chicken sandwich on whole wheat bread.

- Find the totals of all the categories.
- For the first statement, assign variables as names of the events.
- Use the data to determine the relevant probabilities.
- Use the definition of independence to determine if the events seem to be independent.
- For the second statement, assign variables as names of the events.
- Use the data to determine the relevant probabilities.
- Use the definition of independence to determine if the events seem to be independent.