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.

Q: [-29.727, 150.587, -28.344, 181.096, 0.275, -91.658, 169.609, -21.106, 153.48]

A: 53.801
****
Q: [75.879, 43.123]

A: 59.501
****
Q: [135.175, -6.702, 51.401, 181.758]

A:
90.408
****