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]: [36.34, -16.727, 140.541, 127.454, -94.11, -74.52, 96.179, -9.121, -65.54]
[EX A]: 15.611

[EX Q]: [142.225, 243.809, -41.935, 96.795, -99.067, 222.292, 113.486, 143.726]
[EX A]: 102.666

[EX Q]: [92.834, -26.072, -36.119, 97.442, 230.349, 224.718, 201.615, 159.667, 140.457, 47.4]
[EX A]:
113.229