A reviewer rated a sample of fifteen wines on a score from 1 (very poor) to 7 (excellent). A correlation of 0.92 was obtained between these ratings and the cost of the wines at a local store. In plain English, this means that
A) in general, the reviewer liked the cheaper wines better.
B) having to pay more caused the reviewer to give a higher rating.
C) wines with low ratings are likely to be more expensive (probably because fewer will be sold).
D) in general, as the cost went up so did the rating.

Question

Quizplus · Accepted Answer

A correlation of 0.92 indicates a strong positive relationship between two variables, meaning as one variable increases, so does the other. In this context, it means as the cost of the wines increased, the ratings given by the reviewer also tended to be higher.

A Reviewer Rated a Sample of Fifteen Wines on a Score