Question 31

What is the mean of the observations 2, 5, 7, 5, 12, 16, 14, 18, 15 and 16?

Solution

The sum of the 10 observations is $$2 + 5 + 7 + 5 + 12 + 16 + 14 + 18 + 15 + 16 = 110$$. The mean is $$\frac{110}{10} = 11$$.

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