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.

[194.964, 80.506, -41.268, 32.912, -21.6, 21.543, 69.269]
48.047

[-86.423, 157.154, 69.563, -67.516, 147.66, 216.018, 213.404]
92.837

[195.019, 144.893, 32.821, -21.855, 136.755]

97.527