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.

[245.091, 201.984, 204.428, 222.046, 4.807, 21.497, -34.025, 160.097]
128.241

[248.089, 9.064, -69.315, -16.093, 95.107, -73.12, 175.054, 52.865, 95.009]
57.407

[70.575, 91.094, 63.669, 246.635, 115.096, 66.774, 107.812, -7.106, 50.162, 59.612]

86.432