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.

[-84.771, 60.727, 165.566, 27.782, 159.929, 167.451, -64.15]
61.791

[65.486, -51.995, 170.628, -23.998, 83.128, -57.38, 130.737, 214.738]
66.418

[128.007, -8.497]

59.755

