Question

a snack bar offers chili and/or cheese on its hot dogs for an additional fee. the owner kept track of the hot dog orders over the course of a week. his data are shown in a relative - frequency table.

	cheese	no cheese	total
no chili	0.2	0.4	0.6
total	0.3	0.7	1.0

what does the 0.4 in the highlighted cell mean?
a. 40% of his customers ordered no chili and no cheese on their hot dog.
b. 40% of his customers ordered no chili on their hot dog.
c. 40% of his customers ordered no cheese on their hot dog.
d. 40% of the customers that ordered no chili ordered no cheese.

Explanation:

The highlighted cell is in the "No chili" row and "No cheese" column under the "Total" row. In a relative - frequency table, the values in the "Total" row represent the proportion of customers for that particular row - level category. The "No chili" row total of 0.6 means 60% of customers ordered no chili. The value 0.4 in the "No chili" and "No cheese" cell means that out of all customers, 40% ordered no chili and no cheese.

Answer:

A. 40% of his customers ordered no chili and no cheese on their hot dog.