Find the mean of these five daily temperatures: −4°, −6°, 2°, −5°, 3°.

Mean [−4° −6°+ 2° −5° 3°] = -10/5 =-2

Find the mean of these five daily temperatures: −4°, −6°, 2°, −5°, 3°.

$\begin{array}{|rcll|} \hline &&\text{Mean } \{ -4^{\circ}, -6^{\circ}, 2^{\circ}, -5^{\circ}, 3^{\circ} \} \\\\ &=& \dfrac{-4^{\circ}+ (-6^{\circ})+ 2^{\circ}+ (-5^{\circ})+ 3^{\circ}}{5} \\ \\ &=& \dfrac{-10^{\circ}}{5} \\ \\ &=& -2^{\circ} \\ \hline \end{array}$