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: [207.165, 246.399, 44.821, -21.671]

Output: 119.178


Input: Consider Input: [-73.074, 87.743, 221.875, 126.604, 31.513, 196.863]

Output: 98.587


Input: Consider Input: [-62.365, 42.768, 156.975, 202.572, 156.767, 106.581]


Output: 100.55


