Variance Is

Variance is:

A) the average squared deviations about the mean of a distribution of values.
B) an empirically testable statement that is an unproven supposition developed in order to explain phenomena.
C) a statement that asserts the status quo; that is, any change from what has been thought to be true is due to random sampling order.
D) a statement that is the opposite of the null hypothesis.
E) the error made by rejecting the null hypothesis when it is true.