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]: [-13.67, 239.672]
[EX A]: 113.001

[EX Q]: [216.883, -37.346, 67.498, 41.686, 140.857, 195.57]
[EX A]: 104.191

[EX Q]: [46.64, 116.356, 31.237, -44.559, 114.819, 151.648, 67.54, -42.202, 80.551, -84.562]
[EX A]:
43.747