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.

[165.242, 50.738, -34.087, 77.742, -21.241, -4.541]
38.976

[24.119, 239.006, 239.873, 236.27, 134.34]
174.722

[32.962, 40.674, -70.729, 174.148, 76.203, 193.206, -61.932, -2.655, -75.513, 118.474]

42.484