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]: [-92.0, 108.814, 164.207, 94.26, 33.74]
[EX A]: 61.804

[EX Q]: [109.109, -95.395, 5.04, 45.497, 56.443, -72.916]
[EX A]: 7.963

[EX Q]: [184.913, 29.711, -84.626, 152.236, 220.841, 84.287, 10.798]
[EX A]:
85.451

