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.

[4.435, 100.482, 125.267, -76.982, 9.994, 192.069, 54.099, -40.749]
46.077

[155.467, -40.717, -24.529, -22.608, 38.752]
21.273

[54.839, 141.492, 238.156, 158.42, 36.744, -88.884, 25.368, 170.251]

92.048