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Subject 4. Measures of Center Tendency que; a given population has only one mean.
where:
N = the number of observations in the entire population X i = the ith observation ΣX i = add up X i , where i is from 0 to N
<span>Sample Mean
The sample mean is the average for a sample. It is a statistic and is used to estimate the population mean.
where n = the number of observations in the sample
Arithmetic Mean
The arithmetic mean is what is commonly called the a
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