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: [164.612, 30.276, 144.088, -1.588, -57.111, -24.247, -19.301, 152.272, 126.436, 130.879]

64.632