Corey and Dione both love to practice soccer in their backyards. Let cap c represent the number of goals Corey made in a week, and let cap d represent the number of goals Dione made in a week. The mean of the total amount, cap s is equal to cap c plus cap 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
On average, Corey and Dione make 138 goals in a typical week.
C
If two weeks are randomly chosen, the sum of the number of goals made by Corey and Dione will be 138 .
D
Corey makes 138 more goals per week than Dione.
Explanation
The total number of goals in a week is s = c + d, so it includes goals made by both Corey and Dione. A mean of 138 means their combined total is 138 goals per week on average. This matches “On average, Corey and Dione make 138 goals in a typical week”; it does not say that either person individually scores 138.
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