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: [33.905, 132.104, 112.228, -58.704, 210.17, -41.027, 214.05, 156.077]

94.85