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]: [-45.826, -27.376, 126.782, -28.164, 213.819, 186.676]
[EX A]: 70.985

[EX Q]: [-82.27, 46.742, -60.547, 97.652, 121.66, 104.393, -43.603, 125.281, 42.318, 200.514]
[EX A]: 55.214

[EX Q]: [174.928, 23.598, 162.162, -8.708, -15.016, 6.279, 185.501, 178.755]
[EX A]:
88.437