The mean of a sample
a. is always equal to the mean of the population
b. is always smaller than the mean of the population
c. is computed by summing the data values and dividing the sum by (n - 1)
d. is computed by summing all the data values and dividing the sum by the number of items
Answer: d. is computed by summing all the data values and dividing the sum by the number of items
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