Essentials of Statistics (5th Edition)

Variance:$210.86 \ (m\$)^2$. Standard deviation:$14.52 \ m\$$Range:54 \ m\$$.
The mean can be counted by summing all the data and dividing it by the number of data: $\frac{58+22+27+29+21+10+10+8+7+9+11+9+4+4}{14}=16.36$: $\mu=16.36 \ m\$.$Variance=$\frac{\sum (x-\mu)^2}{n}=\frac{(58-16.36)^2+(22-16.36)^2+...+(4-16.36)^2}{14}=210.86 \ (m\$)^2.$ Standard deviation=$\sqrt{variance}=\sqrt{210.86 \ (m\$)^2}=14.52 \ m\$$Range=maximum value-minimum value=58 \ m\-4 \ m\=54 \ m\$$.