Question

(b) a grocery store collected sales data. it found that a change in price does not imply that people will buy more or less milk. what can we determine from this information?
there is no correlation between price and amount of milk bought.
there is a correlation between price and amount of milk bought. however, there is no causation. this is because there is likely a decrease in the amount of milk bought with an increase in the price.
there is a correlation between price and amount of milk bought. there may or may not be causation. further studies would have to be done to determine this.

Explanation:

Correlation refers to a relationship between two variables where a change in one is associated with a change in the other. The problem states a price change does not imply a change in milk bought, meaning no such association exists. The other options incorrectly claim a correlation exists, which contradicts the given information.

Answer:

A. There is no correlation between price and amount of milk bought.