Linear Regression Slope Interpretation
A least-squares regression line given by is used to predict the number of popcorn boxes sold, y, based on theater attendance, x. Which of the following is the correct interpretation of the slope?
A
For every additional attendee, approximately 2 more boxes of popcorn are sold on average.
B
Attendance increases by 2 people for every additional box of popcorn sold.
C
The total number of popcorn boxes sold is twice the total attendance.
D
There is no change in popcorn sales with changes in attendance.
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