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.

[51.372, 141.276, 8.131, 168.539, 151.323]
104.128

[-53.388, 31.309, 19.079, -16.926, 242.421, 210.599]
72.182

[-10.911, 222.925, 128.931, 204.2, 8.763]

110.782