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]: [236.753, 184.794, -45.415, 20.278, -41.34, 109.146, 176.83]
[EX A]: 91.578

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

[EX Q]: [216.276, 111.324, 235.092, 145.323, 113.295, 114.126]
[EX A]:
155.906