Question

a waitress kept track of whether her customers ordered an appetizer and dessert. her data are shown in a relative - frequency table.

what does the 0.1 in the highlighted cell mean?

a. 10% of her customers ordered an appetizer and dessert.
b. 10% of her customers ordered an appetizer.
c. 10% of her customers ordered dessert.
d. 10% of the customers who ordered an appetizer ordered dessert.

Explanation:

In a relative - frequency table, the value in a cell represents the proportion of the total data set that satisfies both the row and column conditions. Here, the row is "Dessert" and the column is "Appetizer". So, 0.1 means 10% of all customers ordered both an appetizer and dessert.

Answer:

A. 10% of her customers ordered an appetizer and dessert.