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Mean formulas Practice
Recall population and sample mean formulas.
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What you’ll practice
The mean divides a total by the number of observations. Keep population and sample notation consistent with the requested formula.
Where this helps
Connecting totals and averages.
Before you start
Use this topic to practice math you have already learned. The examples show the available kinds of recall tasks; this is not a complete textbook chapter. Check the answer form and any stated conditions.
Try a few examples
Real practice. Real progress.
Example 1 of 2
N is a positive integer and x_1 through x_N are the complete finite population values.
Choose the exact expression.
Grades and courses that include this topic
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Start practicingMean formulas
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