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]: [24.119, 239.006, 239.873, 236.27, 134.34]
[EX A]: 174.722

[EX Q]: [-96.182, -37.177, 130.645, -44.92, -12.78, 90.335, -99.791, -11.926, 217.275]
[EX A]: 15.053

[EX Q]: [209.391, -20.297, -96.97, 245.149, 236.303, 36.406, -16.209, 93.283, -80.945, 75.328]
[EX A]:
68.144