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.

[166.542, 216.326, 98.969, -96.779, 33.532]
83.718

[155.467, -40.717, -24.529, -22.608, 38.752]
21.273

[152.737, 14.139, -96.045, 54.146, -49.502, 21.499]

16.162