Find the mean of the observations $8, 12, 16, 22, 10$ and $4$ .

13

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15

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14

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12

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Solution

The correct option is C $12$
The given observations are: $8, 12, 16, 10, 22, 4$
Mean $= \frac{Sum}{Number of observations}$
Mean $= \frac{8 + 12 + 16 + 10 + 22 + 4}{6} = \frac{72}{6} = 12$

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