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: [157.14, 120.799, -55.651, -50.479, 89.067, 192.279, 57.227, 137.972]

Output: 81.044


Input: Consider Input: [54.908, 25.798]

Output: 40.353


Input: Consider Input: [61.265, 131.71, 67.587, -70.842, 93.658, 178.703]


Output: 77.014