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.

[87.258, 29.558, -48.199, -28.615, 46.642]
17.329

[-31.241, 73.981, 127.71, 166.275, 35.028, -10.432]
60.22

[40.66, 108.337, 198.97, -57.311, -52.26]

47.679