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]: [76.889, 179.836, 105.364]
[EX A]: 120.696

[EX Q]: [32.131, 116.887, 66.741, 218.719, 106.049, -93.999]
[EX A]: 74.421

[EX Q]: [-81.496, -99.412, 236.722, 231.577, 37.315, 132.523, 57.5, 220.899]
[EX A]:
91.953