A silly psychology student gathers data on the shoe size of 30 of his classmates and their GPA's.
The correlation coefficient between these two variables is most likely to be
A) near 0
B) near $- 0.6$
C) exactly $+ 1.0$
D) exactly $- 1.0$
E) near $+ 0.6$

Question

A silly psychology student gathers data on the shoe size of 30 of his classmates and their GPA's.
The correlation coefficient between these two variables is most likely to be 
A) near 0
B) near $- 0.6$
C) exactly $+ 1.0$
D) exactly $- 1.0$
E) near $+ 0.6$

Quizplus · Accepted Answer

Shoe size and GPA are unrelated variables, so the correlation coefficient is likely to be near 0, indicating no linear relationship.

A Silly Psychology Student Gathers Data on the Shoe Size −0.6- 0.6−0.6

A Silly Psychology Student Gathers Data on the Shoe Size $- 0.6$