#### Answer

Variance:0.13.
Standard deviation:0.36
Range:1.15.

#### Work Step by Step

By using the results from before: $\mu=0.7186.$
Variance=$\frac{\sum (x-\mu)^2}{n}=\frac{(0.56-0.7186)^2+(0.75-0.7186)^2+...+(0.88-0.7186)^2}{7}=0.13.$
Standard deviation=$\sqrt{variance}=\sqrt{0.13}=0.36$
Range=maximum value-minimum value=$1.25-0.1=1.15$.