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.

[118.783, 191.64, 225.792, 160.903, 209.763, 39.225, 24.607]
138.673

[159.381, -84.046]
37.668

[184.883, 31.746, 111.972, 67.031, 117.43, 32.534, 169.862, -51.339, 98.662]

84.753