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: [66.037, 30.958, 124.853]

Output: 73.949

Input: Consider Input: [194.026, 179.483, 77.885, 111.339, 234.419, 138.685]

Output: 155.973

Input: Consider Input: [-94.649, -47.045, 244.483, 5.338, 243.43, -3.442, 16.366]
Output: 52.069