Which of the following correlation coefficients indicates the strongest correlation? Is it A) 0.71, B) 0.69, C) 0.43, or D) 0.31?
Our correlation coefficient can take any value between negative one and positive one. A positive value indicates a direct correlation. And a negative value indicates an inverse correlation. In this question, all four of our options are positive numbers. Therefore, we are dealing with a direct correlation.
The greater this positive number, up to and including one, the stronger the correlation. Which of our four options is the greatest number? Well, clearly, 0.71 is greater than 0.69, 0.43, and 0.31. Therefore, the correlation coefficient that indicates the strongest correlation is answer A) 0.71.