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: [-40.509, 201.39]

A: 80.44
****
Q: [176.017, -45.57]

A: 65.224
****
Q: [65.486, -51.995, 170.628, -23.998, 83.128, -57.38, 130.737, 214.738]

A:
66.418
****