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.

[192.335, 189.22, 235.216, 130.727, 222.285]
193.957

[126.198, -70.303]
27.947

[47.486, 116.844, 198.678, 51.075]

103.521