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.

[185.594, 89.215, 19.941, 23.299, 47.251]
73.06

[99.278, 72.353, -21.292]
50.113

[-59.526, 55.871, 118.248, 197.073]

77.916