Ans: Median $=67\text{ kg}$, range $=25\text{ kg}$, standard deviation $=7.65\text{ kg}$
Note that the median is the $8$th data. Then the median
Note that the median is the $8$th data. Then the median
$\begin{array}{cl}
= & 67\text{ kg}
\end{array}$
The range
$\begin{array}{cl}
= & 75 – 50 \\
= & 25\text{ kg}
\end{array}$
By using the calculator, the standard deviation
$\begin{array}{cl}
= & 7.649\ 546\ 101 \\
\approx & 7.65 \text{ kg}
\end{array}$
