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: [66.666, -70.196, -39.152]

A: -14.227
****
Q: [24.119, 239.006, 239.873, 236.27, 134.34]

A: 174.722
****
Q: [-81.693, -7.595, -84.721, -54.301, -59.987, 89.947]

A:
-33.058
****