The sum of the squared differences of each score from the mean of a distribution divided
by the number of scores is the definition for the _____ .
a. estimated population standard deviation
b. estimated population variance
c. sample variance
d. sample standard deviation
Question 2
A(n) ______ is a statement of the expected or predicted relationship between two or more variables.
a. dependent variable
b. research hypothesis
c. independent variable
d. correlation coefficient