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:
[248.023, 57.595, -73.013, 200.246, 142.738, -70.94, -43.129, -7.477, 200.087, 6.452]

Ex Output:
66.058


Ex Input:
[-32.03, 84.065, 91.512, 156.512, 78.808, 165.396, 176.764, 116.6]

Ex Output:
104.703


Ex Input:
[-66.784, 220.149, -95.922, 246.835, 217.926, -13.146, 106.214, 91.375, 168.497, 173.521]

Ex Output:

104.866