What is indicated by a Pearson correlation of r = +1.00 between X and Y?
a. Each time X increases, there is a perfectly predictable increase in Y
b. Every change in X causes a change in Y
c. Every increase in X causes an increase in Y
d. All of the other 3 choices occur with a correlation of +1.00.
Question 2
A researcher records the age and price for a group of used Hondas. What kind of correlation is likely to be obtained for these two variables?
a. A positive correlation c. A correlation near zero
b. A negative correlation d. A correlation near one
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