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]: [125.987, 140.164, 103.07, -78.923, -92.734, -96.888]
[EX A]: 16.779

[EX Q]: [219.428, 229.08, 24.616, -83.165, -28.839, 195.219, 170.491, -78.673]
[EX A]: 81.02

[EX Q]: [153.025, 39.886, -99.426, -70.452, 174.618, 67.696]
[EX A]:
44.224