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]: [-2.425, -41.007, 142.975, 117.593, 142.875, -69.307, -38.932, 92.631, 158.921, 87.117]
[EX A]: 59.044

[EX Q]: [128.328, 20.497, 96.178, 237.663, 80.568, 109.722]
[EX A]: 112.159

[EX Q]: [164.352, -97.553, 16.993, 212.683, -67.211, -48.332, 124.661, -49.122, -99.945]
[EX A]:
17.392