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]: [-63.278, 115.92, 179.699, 73.157]
[EX A]: 76.374

[EX Q]: [-32.499, 21.999, 235.435, 58.638, -57.806, 224.947, 74.782]
[EX A]: 75.071

[EX Q]: [211.362, 232.509, -55.576, 30.299, 166.106, 227.931, 229.432, 27.968, -25.196]
[EX A]:
116.093