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: [14.993, 170.321, -5.36, 120.151, -70.197, -22.28, 207.984, 235.405, -27.907, -93.801]

52.931