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: [146.748, -23.736, 49.614]

Output: 57.542


Input: Consider Input: [-3.281, 84.204, -74.415, 151.616, 14.048, -98.313, 95.625, -79.981]

Output: 11.188


Input: Consider Input: [49.13, 178.059, -44.781]


Output: 60.803


