Mean($\ov{x}$) = $\;{Σ{x}}/{n}$
Mean($\ov{x}$) = $\;{ 59 + 44 + 53 + 57 + 49 + 40 + 48 + 50}/{8}$
Mean($\ov{x}$) = $\;{397}/{8}$ ≈ 50 kg
