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]: [47.595, -7.171, 4.333, 160.025, 152.275, 90.23, 128.643, 145.181]
[EX A]: 90.139

[EX Q]: [131.164, 99.999, 138.488, 57.264, -40.069, -82.402, -42.836]
[EX A]: 37.373

[EX Q]: [139.244, 184.59, 132.272, -57.545, 148.006, 242.409, 236.896, -2.984, 79.723]
[EX A]:
122.512