If the data set encompasses an entire population, the arithmetic mean is called a [...]
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Subject 4. Measures of Center Tendency here n = the number of observations in the sample
The arithmetic mean is what is commonly called the average. The population mean and sample mean are both examples of the arithmetic mean.
<span>If the data set encompasses an entire population, the arithmetic mean is called a population mean. If the data set includes a sample of values taken from a population, the arithmetic mean is called a sample mean.
This is the most widely used measure of central tendency.
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