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 Input:
[214.036, 24.752, 106.748, 206.9, 42.432, 233.646]

Ex Output:
138.086


Ex Input:
[248.089, 9.064, -69.315, -16.093, 95.107, -73.12, 175.054, 52.865, 95.009]

Ex Output:
57.407


Ex Input:
[36.936, -84.239, 129.714, -72.915, 191.701, -61.033, 2.407, -5.58, 157.689]

Ex Output:

32.742