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Arithmetic Mean and Range

If we divide ...

Question

If we divide the sum of all observations by the value, we get the number of observations.

A

median

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B

mode

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C

mean

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Solution

The correct option is C mean
$M e a n = \frac{Sum of all observations}{Number of observations}$

$∴ Number of observations$
$= \frac{Sum of all observations}{M e a n}$

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