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]: [178.031, -52.967, 31.914, 174.681, 155.375, -3.831, 165.333, 10.246, -14.468]
[EX A]: 71.59

[EX Q]: [82.992, 235.629, -36.094, -43.326, 27.531, -12.091, 212.495, 34.388]
[EX A]: 62.69

[EX Q]: [-42.791, 57.161, 67.729, 9.2, 0.749, 14.042, 79.452, 65.156, 89.3, 34.715]
[EX A]:
37.471