calculate the correlation for data set A.

Question

Data Set A:
xi = 65, 55, 50, 45, 35
yi= 44, 52, 68, 20, 36

I know how to find the mean, variance, standard deviation, and z-score. The part I am having trouble finding is the ZxiZyi. In the chart that I have to fill in it says Zxi in one column, then Zyi in the next, and the last column says ZxiZyi. Please help. Thank you

Answer 1

I'm assuming you have to multiply the two. In other words, take Zxi * Zyi for ZxiZyi.

I hope this is what you were asking.

Answer 2

thank you!!!