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.

[73.603, -84.154, 222.739, 205.594, 215.842]
126.725

[179.929, 180.162, -63.896, -56.366, 233.638]
94.693

[197.891, -14.144, 24.247, -79.353]

32.16