Population Mean Formula

About Population Mean Formula

If all possibilities are equal, the ratio that adds the values to the number of the value is the population mean. A population mean includes every element from the set of possible observations. Get the List of all Maths formulas in one place.

The population mean can be calculated using the formula:

$\mu =\frac{\sum X_i}{n}$

Here, ∑X_i is the Sum of the values, N is the Number of the value

Question: Find the population mean of the following numbers 1, 2, 3, 4, 5.

• Solution: It is given that, X_i = 1, 2, 3, 4, 5
• = 1 + 2 + 3 + 4 + 5 = 15
• N = 5
• Population Mean = $\frac{\sum {\mathrm{X}}_{\mathrm{i}}}{\mathrm{N}}=\mu$= 15/5 = 3
• Population Mean = 3

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