In this task you will be given a list of numbers and you need to find the mean (average) of that list. The mean of a list can be found by summing every number in the list then dividing the result by the size of that list. The output should be rounded to 3 decimal places.

[112.026, 20.03, 73.595, -24.957, 185.718, 36.43, 206.024]
86.981

[151.151, 144.049, 217.252]
170.817

[28.203, -83.015, 53.458]

-0.451