Question

2.4.3 test (cst): describing data graphically
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 on their hot dog.
b. 40% of the customers that ordered no chili ordered no cheese.
c. 40% of his customers ordered no chili and no cheese on their hot dog.
d. 40% of his customers ordered no cheese on their hot dog.

Explanation:

Step1: Analyze row - column position

The 0.4 is in the "No chili" row and "No cheese" column.

Step2: Interpret relative frequency

In a relative - frequency table, this value represents the proportion of customers who ordered no chili and no cheese. Since it is 0.4, it means 40% of customers ordered no chili and no cheese.

Answer:

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