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]: [-34.026, 86.773, 149.194, 228.14]
[EX A]: 107.52

[EX Q]: [-75.579, -19.294, 243.752, 167.559, 86.218, 48.102, 28.694, 31.259, 182.995]
[EX A]: 77.078

[EX Q]: [66.166, -25.173, -85.489, 244.275, 145.173, -17.519, 219.69]
[EX A]:
78.16