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: [84.13, 59.186, 115.606]

A: 86.307
****
Q: [217.523, 92.701, -55.65, -89.359, 55.742, 158.634, -31.883, 206.554]

A: 69.283
****
Q: [-12.955, -31.004, 148.566]

A:
34.869
****