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]: [87.234, -30.861, 221.46, 120.15, -85.065, 67.024, 144.174, -64.546]
[EX A]: 57.446

[EX Q]: [-12.392, 57.854, 59.291, -18.155, -94.56, 94.214, -38.912]
[EX A]: 6.763

[EX Q]: [53.092, 242.414]
[EX A]:
147.753