Definition: 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: [134.609, 165.127, 60.718, 139.76, 60.611, 186.088, 152.81, 18.065]

114.724