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: [-51.709, 7.971, 56.819, 147.653, 82.016, 33.283, 17.84, -45.317, 152.854, 6.908]

Output: 40.832


Input: Consider Input: [-42.956, 89.597, -60.477, 101.972, 77.479]

Output: 33.123


Input: Consider Input: [69.943, -11.838, 61.595, 15.873, 69.424, 118.009, -97.406, 128.441]


Output: 44.255