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.

[47.595, -7.171, 4.333, 160.025, 152.275, 90.23, 128.643, 145.181]
90.139

[-94.286, 148.737, 234.8, 148.972]
109.556

[-45.573, 113.249]

33.838