Question

Which of the following r-values represents the strongest correlation? A 0.32 B 0.45 C 0.62 D 0.50

Answer 1

First of all we need to understand what is correlation coefficient.

Correlation coefficient is a number between $-1$ and $+1$ which is calculated to represent the linear dependence of two variables or two sets of data.

Now, as we know that the correlation coefficient $r$ can be between $-1$, and $+1$ the closer it is to either negative 1 or positive 1,  the stronger the correlation between the two variables.

Here out of 4 given options we can see that option C whose value is 0.62 is closest to 1. Therefore, 0.62 represents the strongest correlation among all the given options.