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: [233.962, 4.931, -53.699, 212.744, 50.622, 179.646, 115.708, -94.893, 116.1, -81.4]

68.372