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: [-26.582, 128.309, 109.952, 136.584, 188.957, 52.098, 36.082, 134.269]

94.959