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]: [-2.772, 225.483, 211.749, 45.779, -82.623, 229.799, 107.783, 64.653]
[EX A]: 99.981

[EX Q]: [-19.13, 98.86, 158.686, 230.23]
[EX A]: 117.161

[EX Q]: [175.015, 7.294, -30.146, 197.862, 76.557, 16.567, 176.301]
[EX A]:
88.493