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If $\bar{X}$ represents the mean of n observations $x_{1}, x_{2}, \dots, x_{n}$ then value of $\sum_{i = 1}^{n} (x_{i} - \bar{x})$ is:

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- 1

n - 1

answer is B.

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Detailed Solution

Here given that

\bar{X}

i= average or mean of all the observations.
We know that when all the numbers drawn on the number line, then half number will lie left side of meanwhile half on the right side of mean.
So,

(x_{i} - \bar{x})

has the value equal to the number of positive and negative terms whose addition =0.
So, correct option is 2.

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