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: [-6.099, 142.31]

A: 68.106
****
Q: [217.978, 70.977, 31.129, -87.408, -99.013, 249.862, -87.151, 207.527, 43.432]

A: 60.815
****
Q: [73.888, 3.603, -39.616, 177.936, 122.352, 224.579, 247.705]

A:
115.778
****