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.

Input: Consider Input: [51.372, 141.276, 8.131, 168.539, 151.323]

Output: 104.128


Input: Consider Input: [182.441, 58.468, 209.229, 249.908, 32.346, 30.442]

Output: 127.139


Input: Consider Input: [-37.656, 202.233, 247.604, 115.991, 231.733, -36.4, 137.835]


Output: 123.049