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: [200.597, -6.12, -10.081, 178.124, -1.971, 55.151, 175.515, -27.702, 244.955, 133.591]

94.206