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.

Input: Consider Input: [165.242, 50.738, -34.087, 77.742, -21.241, -4.541]

Output: 38.976


Input: Consider Input: [-17.106, 23.8, -54.195, 233.82, -99.732, -68.488, 215.616]

Output: 33.388


Input: Consider Input: [87.258, 29.558, -48.199, -28.615, 46.642]


Output: 17.329


