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.

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

[236.959, 159.123, 17.257, 241.561, 119.782, -3.56, -30.957]
105.738

[-84.485, 125.356, 186.954, 141.378, 33.445, 175.804, 90.426, 75.923]

93.1