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]: [-45.201, 161.25, -67.093, 105.259, 110.499, 224.516, -55.166, 11.51]
[EX A]: 55.697

[EX Q]: [20.796, 39.383, -26.46, -27.224, 89.591, 87.502, 211.781, 127.87, 223.38]
[EX A]: 82.958

[EX Q]: [79.918, 121.732, -98.56, 204.154, -98.411, 155.766]
[EX A]:
60.767