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.

[23.632, 47.911, 95.884, 239.46, -68.225, 80.094, 111.959]
75.816

[-19.64, 5.69, 102.211, 159.062, 7.744, 242.03, 141.431, 105.364, 40.338]
87.137

[150.295, 154.117, 236.92, 91.629, 114.978, -23.848]

120.682