The estimated population variance is defined as the sum of the _____ .
a. squared differences of each score from the mean of a distribution divided by the
sample size
b. differences of each score from the mean of a distribution divided by the sample
size
c. squared differences of each score from the mean of a distribution divided by the
sample size minus one
d. differences of each score from the mean of a distribution divided by the sample
size minus one
Question 2
When an observed difference between two groups on the dependent variable is attributed to the effect of the independent variable through statistical hypothesis testing, then we know that ______ .
a. it is unlikely that the difference would occur by chance alone
b. the raw data have been refined
c. the groups were not equivalent before the independent variable was introduced
d. it is likely that the difference would occur by chance alone
EEG recordings showing the differences between normal, absence seizure, and generalized tonic–clonic
Population Growth and Change
Population Patterns
Population Patterns: Tarim Basin
World population density
Population growth