Mean, x‾=1+2+0+(−3)+5+(−2)+47=77=1\overline{x} = \frac{1+2+0+(-3)+5+(-2)+4}{7} = \frac{7}{7} = 1x=71+2+0+(−3)+5+(−2)+4=77=1
52
Variance = ∑(x−x‾)2n\frac{\sum (x - \overline{x})^{2}}{n}n∑(x−x)2
= 527\frac{52}{7}752
