Exercise

Variance and covariance by looking

Consider four scatter plots of \(x\)-\(y\) data, appearing to the right. Which has, respectively,

the highest variance in the variable \(x\),
the highest covariance,
negative covariance?

Instructions

50 XP

Possible Answers

a, c, b
d, c, a
d, c, b
d, d, b

Take Hint (-15 XP)