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.

[166.542, 216.326, 98.969, -96.779, 33.532]
83.718

[80.346, 228.37, 18.978, -42.02]
71.419

[-15.327, 40.258, 209.752, -51.985, -28.634, -45.879, -63.239, 30.253, 180.29, 246.794]

50.228