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.

[59.251, 198.593]
128.922

[207.449, 85.584, -55.048, -10.53, 30.755]
51.642

[-40.282, -27.106, 222.347, 79.77]

58.682