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: [-12.392, 57.854, 59.291, -18.155, -94.56, 94.214, -38.912]

Output: 6.763


Input: Consider Input: [-6.305, 138.079, 112.522, 52.257, -2.129]

Output: 58.885


Input: Consider Input: [92.4, 143.083, 85.742, 237.139, 210.441, 2.102, -31.164, 118.133]


Output: 107.234