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: [182.441, 58.468, 209.229, 249.908, 32.346, 30.442]

Output: 127.139

Input: Consider Input: [88.77, 109.102, -86.446, 207.301, 160.91, -12.956]

Output: 77.78

Input: Consider Input: [-6.254, 227.214, 16.679, 223.03, 159.255]
Output: 123.985