I need help asap!!
Annabelle works in a deli and has been tracking the daily sales of different items over several months. Annabelle found that when there was an increase in the number of cups of hot chocolate sold, the number of cups of coffee sold also increased. Similarly, when there was a decrease in the number of cups of hot chocolate sold, the number of cups of coffee also decreased.

Which of the following is a valid conclusion?

A.
No conclusion can be drawn about the correlation or causation of the sale of hot chocolate and the sale of coffee.
B.
The increase in the sale of hot chocolate is correlated to, but not caused by, the sale of coffee.
C.
The increase in the sale of hot chocolate caused an increase in the sale of coffee.
D.
There is no correlation between the sale of hot chocolate and the sale of coffee.

Answer: The answer is B because when hot chocolate sales increase, so do coffee sales, but the sale of one does not increase the other. There were just more customers that day.

Answer Link

MrRoyal MrRoyal · Answer 2 · 2021-12-09T17:41:23+01:00

Correlation measures how the sales of coffee is linearly related to the sales of hot chocolate.

The valid conclusion is (b) The increase in the sale of hot chocolate is correlated to, but not caused by, the sale of coffee.

From the question, we understand that: the sales of coffee and hot chocolate increases and decreases at the same time.

This means that both variables are correlated.

However, correlation does not imply causation; so the increased or decreased sales of hot is not necessarily caused by the increased or decreased sales of coffee.

Hence, the true statement is (b)