# Example 3

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.
1. Find the totals of all the categories.
2. For the first statement, assign variables as names of the events.
3. Use the data to determine the relevant probabilities.
4. Use the definition of independence to determine if the events seem to be independent.
5. For the second statement, assign variables as names of the events.
6. Use the data to determine the relevant probabilities.
7. Use the definition of independence to determine if the events seem to be independent.
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