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: [152.683, 147.968, 62.877, -44.254, 4.344]

Output: 64.724


Input: Consider Input: [213.149, 184.894, -93.544, 195.043, 78.738, 229.09, 220.609, 80.079, 7.498]

Output: 123.951


Input: Consider Input: [235.617, -44.451, 135.385, -16.842, -97.785]


Output: 42.385