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]: [198.323, 108.702, 38.704, -8.85, 57.749, 108.604, -20.56, 229.826, -85.953, 177.128]
[EX A]: 80.367

[EX Q]: [-47.309, -46.076, 191.14, -6.032, 4.858]
[EX A]: 19.316

[EX Q]: [-52.364, 213.017, 247.348, 118.193, 220.782, 91.501]
[EX A]:
139.746

