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.

Ex Input:
[198.323, 108.702, 38.704, -8.85, 57.749, 108.604, -20.56, 229.826, -85.953, 177.128]

Ex Output:
80.367


Ex Input:
[-61.563, 49.659, 125.562, 130.542, 75.232, 197.442, 175.182, 54.736, 210.833, 65.27]

Ex Output:
102.289


Ex Input:
[-17.109, -54.795, -63.623, 199.981, 80.396, 45.601, 112.538, 212.129]

Ex Output:

64.39