Variance is:
A. an empirically testable statement that is an unproven supposition developed in order to explain certain phenomena.
B. 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.
C. the average squared deviations about the mean of a distribution of values.
D. the error made by rejecting the null hypothesis when it is true.
E. a statement that is the opposite of the null hypothesis.
Answer: C
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