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: [7.098, -94.835, 117.065, 231.573, 235.083, 42.018, 121.608, -5.856, 203.0]

95.195