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: [-2.869, -88.698, 21.318]

A: -23.416
****
Q: [138.602, 158.458, 241.327, 194.509, 169.45, -56.151]

A: 141.032
****
Q: [5.045, 222.963, 122.881]

A:
116.963
****