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]: [121.069, 12.661, 159.825, -39.645, 6.609, 156.735, 110.054, 112.875]
[EX A]: 80.023

[EX Q]: [74.43, 138.738, 114.237, 138.845, 188.957, 103.103, -43.988, -68.085, 157.274]
[EX A]: 89.279

[EX Q]: [51.158, 58.179]
[EX A]:
54.668