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]: [-56.201, -77.67, -75.53, -51.92, 146.416, 141.525]
[EX A]: 4.437

[EX Q]: [117.913, 21.456, 98.401, -32.801, -20.798, 182.745, 201.277]
[EX A]: 81.17

[EX Q]: [35.852, 19.221, -0.701, 40.098, 218.102, -56.196, 113.633]
[EX A]:
52.858