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.

[17.002, 179.236, 60.396, 98.09]
88.681

[20.538, 100.835, -23.197, 207.707, -12.758, 152.97, 190.404]
90.928

[-96.796, 127.634, 135.049, -55.677, 11.648, 72.63, 176.028, 48.486, 209.389, -13.558]

61.483