Corey and Dione both love to practice soccer in their backyards. Let C represent the number of goals Corey made in a week, and let D represent the number of goals Dione made in a week. The mean of the total amount, S = C + D, of goals made in a typical week is 138. What is the correct interpretation of this value?
Answer
A
On average, Dione makes 138 goals per week.
B
Corey makes 138 more goals per week than Dione.
C
On average, Corey and Dione make 138 goals in a typical week.
D
If two weeks are randomly chosen, the sum of the number of goals made by Corey and Dione will be 138.
Explanation
Since S = C + D, S is the combined number of goals Corey and Dione make in a week. A mean of 138 means their combined total averages 138 goals per typical week. It does not mean Dione alone scores 138, or that Corey scores 138 more than Dione.
AI-written and checked against the verified answer.