Definition: 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: [205.118, 101.679, 202.802, 144.052, -2.468, 239.04, -94.46, 214.193, 193.626]

133.731