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.

[201.917, 240.159, 36.615]
159.564

[41.573, 107.077, 26.564, -66.491, -90.163, 199.995, -28.782]
27.11

[176.019, 199.027, -92.575, -10.692, 206.093, 130.295]

101.361