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: [207.449, 85.584, -55.048, -10.53, 30.755]

Output: 51.642


Input: Consider Input: [-57.148, -59.655, 208.462, 223.004, 100.684, 188.569]

Output: 100.653


Input: Consider Input: [119.685, 160.143, -82.61, -68.322, -60.592, 214.065, 20.136, 136.226]


Output: 54.841