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:
[166.542, 216.326, 98.969, -96.779, 33.532]

Ex Output:
83.718


Ex Input:
[77.498, 234.955, 184.005, -48.344, 113.167]

Ex Output:
112.256


Ex Input:
[-5.862, -15.045, 226.755, 183.685, 145.261, -38.91, -1.656, 110.068]

Ex Output:

75.537