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Arithmetic Mean

What is the m...

Question

What is the mean of given numbers ?

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1.5

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Solution

The correct option is C
1.5
There are 6 numbers present in the box.

Sum of all the numbers = 6 + 20 + 15 - 11 - 4 - 17 = 9
Number of observations = 6

Mean = $\frac{S u m o f O b s e r v a t i o n s}{N u m b e r o f O b s e r v a t i o n}$

= $\frac{9}{6}$ = 1.5

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