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: [80.346, 228.37, 18.978, -42.02]

A: 71.419
****
Q: [26.595, 220.402, -36.236, -79.382, -17.51, -71.282]

A: 7.098
****
Q: [130.596, -14.297, 50.727, 228.942, 235.096]

A:
126.213
****