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: [142.225, 243.809, -41.935, 96.795, -99.067, 222.292, 113.486, 143.726]

Output: 102.666


Input: Consider Input: [149.451, 230.29, 56.327, -72.328, -73.276, -90.669, 206.191, 87.481]

Output: 61.683


Input: Consider Input: [40.037, 194.165]


Output: 117.101


