Question

The value of ${\sum }_{i=1}^n{x}_i$ is

• A. $\frac{\overline{X}}{2}$
• B. $2\overline{X}$
• C. $n\overline{X}$
• D. $\frac{\overline{X}}{n}$

Answer 1

The correct option is C

$n\overline{X}$

$\overline{X}=\frac{{\sum }_{i=1}^n{x}_i}{n}$

Therefore,$\sum x$=n$\overline{X}$