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:
[93.433, 148.366, 19.269]

Ex Output:
87.023


Ex Input:
[194.983, -22.961, 95.798, -2.34, 178.547, -90.942, 122.52, 109.389]

Ex Output:
73.124


Ex Input:
[-63.543, -71.569, 39.99, 204.104, 208.653, 163.789]

Ex Output:

80.237