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: [126.177, 120.225, 231.498, 170.694, 34.361, 101.823, -21.468, 234.339]

Output: 124.706


Input: Consider Input: [-48.196, 15.566, 65.782, 174.566, -91.786, 52.379, 2.658, 76.856]

Output: 30.978


Input: Consider Input: [-74.084, 8.978, 137.226, -9.442]


Output: 15.669


