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:
[234.404, 162.933, 178.375, 10.683, 181.727, -50.587, 169.507, -72.896, 168.06, 238.363]

Ex Output:
122.057


Ex Input:
[25.58, 99.319, 165.429]

Ex Output:
96.776


Ex Input:
[-23.62, 182.674, 11.011, 140.381]

Ex Output:

77.612