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: [-62.433, -43.441, -21.481, 66.703, 194.636, -0.827, 102.425, 148.207]

47.974