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: [-71.118, 160.927, 230.116, -26.655, -4.297, 64.272, 72.304, 41.517, 242.068]

Output: 78.793


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

Output: 51.642


Input: Consider Input: [-97.707, -72.74, 182.248, 67.464, 198.86]


Output: 55.625