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: [229.28, 202.632, 129.717, 211.459, 203.204]

Output: 195.258


Input: Consider Input: [206.606, -76.103, -16.863, 44.126, 4.019, 15.088]

Output: 29.479


Input: Consider Input: [-79.748, 98.398, 55.667, 77.39, -20.719, 187.168, 142.334, 110.723]


Output: 71.402