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.

[162.26, 79.268]
120.764

[-56.201, -77.67, -75.53, -51.92, 146.416, 141.525]
4.437

[1.895, -23.611, 97.048, 44.798, 105.695, 18.329, 248.611, 47.08, 184.901, 93.802]

81.855