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.

[193.91, 159.502, 226.363, 152.723, 47.512, 74.563, 40.762, -60.456, 87.324, 80.779]
100.298

[57.478, 212.225, -90.816, -10.092, 238.514, 60.36, 59.627]
75.328

[204.355, 180.267, 75.633, -87.94, 157.391, 63.044, 205.133]

113.983