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: [209.76, 2.044, 14.651, 206.465, 47.089, -40.192, -95.23, 52.993]

49.698