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.

[169.922, 249.47, 142.453, -55.768, 155.357, 6.096, -95.702, 243.569, 31.11, -75.031]
77.148

[-48.12, 192.63, 32.454, 132.703, -26.044, 140.006, -8.624, 38.438]
56.68

[-10.058, 179.269, 209.598, 189.824, 72.745, -32.925]

101.409