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.

[75.879, 43.123]
59.501

[79.04, 110.342, 208.846, 132.702, 48.832, -81.929]
82.972

[-33.532, 72.93, 240.522, 81.099, 30.379, -38.788, 99.389, 81.632]

66.704