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: [14.082, -7.618, -29.795, 187.226, 193.936, -52.27, 202.49, 66.698]

71.844