Which statistical value is used to represent the linkage of the increase in one measurement to the increase in a second measurement?
A)covariance
B)correlation coefficient
C)standard deviation
D)variance

Question

Quizplus · Accepted Answer

The correlation coefficient measures the strength and direction of a linear relationship between two variables. It ranges from -1 to +1, where -1 indicates a perfect negative correlation, +1 indicates a perfect positive correlation, and 0 indicates no correlation. Covariance also measures the relationship between two variables, but it can be difficult to interpret because it is not standardized like the correlation coefficient. Standard deviation and variance measure the spread or variability of a single variable, not the relationship between two variables.

Which Statistical Value Is Used to Represent the Linkage of the Increase