Question

1. what is the correlation coefficient for two variables that have a perfect positive linear correlation? a. 0 b. 1 c. 50 d. 100

Explanation:

Step1: Recall correlation coefficient concept

The correlation coefficient $r$ ranges from - 1 to 1. A value of -1 indicates a perfect negative linear correlation, 0 indicates no linear correlation, and a value of 1 indicates a perfect positive linear correlation.

Answer:

B. 1