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]: [126.453, 169.516, 109.837, 208.695, 113.906, 56.894, 171.345, 126.81]
[EX A]: 135.432

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

[EX Q]: [17.853, -53.643, -51.456, 247.043, 152.446, 159.308]
[EX A]:
78.592