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.

[EX Q]: [64.523, 131.207, -30.223, -95.659]
[EX A]: 17.462

[EX Q]: [37.853, 78.283, 143.128, 82.561, 181.661, -89.154, 50.037]
[EX A]: 69.196

[EX Q]: [19.893, 7.992, 71.926, 117.384, -47.437, 82.738, 166.352, 58.523, 181.442, 158.854]
[EX A]:
81.767