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: [186.794, 225.01, 106.067, -5.158, 5.493, 217.287, 122.049, -97.024]

95.065