A perfect Spearman correlation of +1 or −1 between two variables indicates
A)a perfect linear relationship between the two variables
B)a perfect nondecreasing or nonincreasing function of the two variables.
C)the Pearson correlation is 1
D)the Pearson correlation is +1 or -1
E)the two variables are not related.

Question

Quizplus · Accepted Answer

A perfect Spearman correlation of +1 or −1 indicates a perfect monotonic relationship, meaning the variables move in a perfect nondecreasing or nonincreasing manner relative to each other, not necessarily linear.

A Perfect Spearman Correlation of +1 or −1 Between Two