# Question: calculating covariance and correlation for two sets of test scores...

###### Question details

Calculating covariance and correlation for two sets of test scores.

Basically, I'm given sample data for two sets of test scores. Each set has 17 scores. So, the table looks like:

SERIES A: Score1, Score2.......Score17

SERIES B: Score1, Score2.......Score17

How would I go about measuring covariance? I know I need an x variable and a y variable -- but I thought covariance measured the relationship between the variables. Would x be series A and y be series B?