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.

[128.328, 20.497, 96.178, 237.663, 80.568, 109.722]
112.159

[178.031, -52.967, 31.914, 174.681, 155.375, -3.831, 165.333, 10.246, -14.468]
71.59

[249.423, -53.084, 220.165, 69.446, 89.386, 76.86]

108.699