Find the average of the following data set.

12 86 45 78 23 56

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Solution

The correct option is B 50
$A v e r a g e$ = $\frac{S u m o f a l l o b s e r v a t i o n s}{N u m b e r o f o b s e r v a t i o n s}$

= $\frac{12 + 86 + 45 + 78 + 23 + 56}{6}$
= $\frac{300}{6}$
= 50.

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