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: [215.561, -18.128]

A: 98.716
****
Q: [96.706, 239.918, 73.299, 68.184, 233.512, -76.407]

A: 105.869
****
Q: [-22.536, 152.196, 165.985, 74.415, 227.614, 103.706, 91.838]

A:
113.317
****