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.

[85.925, 218.341, -55.232, 136.11, 243.387, 98.158, 183.742, 85.875, 124.291, -95.213]
102.538

[-57.838, -63.616, 49.646, -45.262, 73.1, -82.399, 47.168]
-11.314

[138.598, 55.677, 18.483, 226.852, 75.885, -65.561, 8.468, 203.355]

82.72