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]: [214.656, -82.183, 105.038, -34.9, -44.836, 143.236, 183.045, 160.483, 34.398]
[EX A]: 75.437

[EX Q]: [-60.041, -56.779, 6.2, 73.114, 137.319]
[EX A]: 19.963

[EX Q]: [-21.184, 213.048, -62.869, 66.984, 41.509, 124.51, -37.612]
[EX A]:
46.341