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Terms in this set (5)
sample mean
the most frequently used measure of center of a sample that can be very sensitive to the presence of even a single outlier
population mean
the average x value in the entire population
sample median
the middle value in the ordered list of sample observations, which is very insensitive to outliers
trimmed mean
a measure of center in which the observations are first ordered from smallest to largest, one or more observations are deleted from each end, and the remaining ones are averaged. it is a compromise between the mean and the median in terms of sensitivity to outliers
the population variance and standard deviation
measures of variability for the entire population
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