Problem:

Compute the mean of ${-\frac{7}{\sqrt{5}}, -\frac{11}{\sqrt{5}}, \frac{14}{\sqrt{5}}, \frac{8}{\sqrt{5}}, \frac{12}{\sqrt{5}}, \frac{21}{\sqrt{5}}, -\frac{8}{\sqrt{5}}}$.

import math

from statistics import mean
values = -(7/(math.sqrt(5))), -(11/(math.sqrt(5))), (14/(math.sqrt(5))), (8/(math.sqrt(5))), (12/(math.sqrt(5))), (21/(math.sqrt(5))), -(8/(math.sqrt(5)))
print(mean(values))
