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: [159.381, -84.046]

Output: 37.668


Input: Consider Input: [47.595, -7.171, 4.333, 160.025, 152.275, 90.23, 128.643, 145.181]

Output: 90.139


Input: Consider Input: [83.391, -50.946, -98.829, 210.711, 99.016, 235.627, 242.823]


Output: 103.113