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: [215.854, -43.532, 51.416]

A: 74.579
****
Q: [-45.826, -27.376, 126.782, -28.164, 213.819, 186.676]

A: 70.985
****
Q: [-97.578, 131.426, 109.091]

A:
47.646
****