Curiously, during months when sales of beer are above average, sales of ice cream also tend to be above average; during months w
hen sales of beer are below average, sales of ice cream also tend to be below average. Which of the following can we conclude from these facts? A. For a lot of people, drinking beer causes a desire for ice cream, or vice versa.
B. The correlation between "beer sales" and "ice cream sales" is negative.
C. A scatterplot of monthly ice cream sales vs. monthly beer sales would show that a straight line describes the pattern in the plot, but it would have to be a horizontal line.
D. None of the above
A. For a lot of people, drinking beer causes a desire for ice cream, or vice versa.
Explanation:
We can conclude from the monthly sales that when a lot of people drink beer, a lot of people tends to take ice cream, and when less people take beer, less people tends to take ice cream, the fact shows that there is a correlation between the sales of beer and the sales of ice cream.
