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]: [53.271, 224.646, -66.568, -23.058, -60.09, 178.437, -70.082, 131.116]
[EX A]: 45.959

[EX Q]: [14.166, 216.734, -23.073, 209.811, 203.336, 91.659, 142.602, 1.151, -39.869, -54.838]
[EX A]: 76.168

[EX Q]: [137.406, 41.059, -11.091, 34.113, 193.319, 111.42, 36.348, 39.746, 204.726, -42.921]
[EX A]:
74.412