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: [36.34, -16.727, 140.541, 127.454, -94.11, -74.52, 96.179, -9.121, -65.54]

Output: 15.611


Input: Consider Input: [-17.141, 203.132, -6.872, 155.222, -99.642]

Output: 46.94


Input: Consider Input: [54.838, 54.884, -49.76, 44.127, 207.55, -64.738, 102.633, 240.723, 160.019]


Output: 83.364