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:
[96.706, 239.918, 73.299, 68.184, 233.512, -76.407]

Ex Output:
105.869


Ex Input:
[246.744, 206.484, 194.841]

Ex Output:
216.023


Ex Input:
[212.618, -82.291, 210.651, 218.217, 0.112, -65.56, 216.532, 179.567, -1.07, 43.236]

Ex Output:

93.201