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]: [152.683, 147.968, 62.877, -44.254, 4.344]
[EX A]: 64.724

[EX Q]: [-3.281, 84.204, -74.415, 151.616, 14.048, -98.313, 95.625, -79.981]
[EX A]: 11.188

[EX Q]: [212.956, 185.858, 185.03, 95.708, 217.62, 243.52, 192.315, 35.864, -84.186, 93.102]
[EX A]:
137.779