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: [93.577, 156.005, 201.591, 136.865, 158.713, 2.002, -34.416, 208.147]

115.31