Author Question: In a study, the correlation coefficient for W and X is -0.25 . The correlation coefficient for X and ... (Read 82 times)

abern · **on:** Jul 13, 2018

In a study, the correlation coefficient for W and X is -0.25 . The correlation coefficient for X and Y is 0.20 . The coefficient of determination for X and Z is 0.16 . The coefficient of alienation for Y and Z is 0.90 .

Which pair of variables has the highest amount of variance accounted for?
a) X and Y
b) X and Z
c) Y and Z
d) W and X

Question 2

When you have ordinal data (such as class rank), which is the best measure of central tendency to use?

a) range
b) mode
c) median
d) mean