George designed an experiment to determine the number of calories consumed daily in the average American diet. The procedure he used for his experiment is shown below.
Find 100 volunteers to record everything they eat for a week

Ask volunteers what their favorite dessert is

Collect volunteers' records

For each volunteer, calculate the total number of calories taken in during the week

Divide each volunteer's total calorie count by seven and then average the 100 participants' daily calorie consumption

Which step in George's experimental procedure is unnecessary?
A.
Step 4
B.
Step 2
C.
Step 3

Question

George designed an experiment to determine the number of calories consumed daily in the average American diet. The procedure he used for his experiment is shown below.
Find 100 volunteers to record everything they eat for a week

Ask volunteers what their favorite dessert is

Collect volunteers' records

For each volunteer, calculate the total number of calories taken in during the week

Divide each volunteer's total calorie count by seven and then average the 100 participants' daily calorie consumption

Which step in George's experimental procedure is unnecessary?
 A. 
Step 4
 B. 
Step 2
 C. 
Step 3

Mercury · Answer

thoughts about this one?

re-read steps 2, 3, and 4 again. one of them will not give him useful data about what the people actually consumed in their diet. any ideas which one?