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]: [-61.905, -98.66, 90.472, 237.317, 5.243, 196.933]
[EX A]: 61.567

[EX Q]: [-51.709, 7.971, 56.819, 147.653, 82.016, 33.283, 17.84, -45.317, 152.854, 6.908]
[EX A]: 40.832

[EX Q]: [104.298, 81.934, 32.322]
[EX A]:
72.851