The population variance is the average of the squared deviations of the individual population measurements from the population mean.
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Q11: The median is the value below which
Q12: A correlation coefficient close to −1 says
Q13: Data summarized in a frequency distribution or
Q14: The weights that are used in calculating
Q15: In a symmetric population, the median equals
Q17: The pth percentile is a value such
Q18: The median is the measure of central
Q19: The mean is one component of the
Q20: The mode is the measurement in a
Q21: In the calculation of a mean for
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