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: [236.276, 41.64, 208.982, 159.946, -96.569, 189.959, -40.212, 20.655, -96.342, -53.74]

57.06