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.

[233.848, -58.713, 126.623, 27.615, 62.365, 200.239, 13.38]
86.48

[-98.361, -84.91]
-91.636

[81.319, 189.474, -90.547, 249.359]

107.401