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.

[146.748, -23.736, 49.614]
57.542

[169.737, 56.872, 102.557, -9.77]
79.849

[190.331, 168.545, -41.29, 0.942, 247.518, -41.747]

87.383