Question

The following are the number of books issued in a school library during a week: $105,216,322,167,273,405$ and $346$. Find the average number of books issued per day.

Answer 1

Find the value of mean.

Given data: $105,216,322,167,273,405$ and $346$

$\mathrm{Mean}\left(\overline{X}\right)=\frac{\mathrm{Sum}\mathrm{of}\mathrm{terms}}{\mathrm{Number}\mathrm{of}\mathrm{terms}}$

$Mean\left(\overline{X}\right)=\frac{105+216+322+167+273+405+346}{7}$

$\overline{X}=\frac{1834}{7}$

$\overline{X}=262$

Hence, the average number of books issued per day is $262$.