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]: [-6.099, 142.31]
[EX A]: 68.106

[EX Q]: [11.642, -39.595, 23.351, 168.447, 244.85, 108.958, 80.422, -14.774, 138.977]
[EX A]: 80.253

[EX Q]: [132.047, -2.027, 97.041, -49.199, 29.646, 3.384, 104.121, 237.857, 5.555]
[EX A]:
62.047