Find the mean of first seven even natural numbers.

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Solution

First seven even natural numbers are 2, 4, 6, 8, 10, 12 and 14.

Mean of the first seven even natural numbers = $\frac{Sum of the given observations}{Number of the given observations}$

= $\frac{2 + 4 + 6 + 8 + 10 + 12 + 14}{7} = \frac{56}{7} = 8$

Mean of the first seven even natural numbers is 8.

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