Author Question: Which of the following is a property of r, the coefficient of correlation? a. r always lies between ... (Read 53 times)

plus1 · **on:** Jun 24, 2018

Which of the following is a property of r, the coefficient of correlation?
a. r always lies between 0 and 1.
b. r has no units.
c. If you switch the values of X and Y, the sign of r changes.
d. All of these choices are true.

Question 2

A perfect straight line sloping downward would produce a correlation coefficient equal to:
a. +1.0
b. -1.0
c. 0.0
d. Cannot tell from the information given.