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: [-75.39, 153.728, -24.068, 186.496, 127.642, 27.701, 178.912, 10.982, -94.437, 35.731]

52.73