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: [73.603, -84.154, 222.739, 205.594, 215.842]

Output: 126.725


Input: Consider Input: [122.737, 189.477, -4.853, 150.031, 126.296, 240.809, 204.743, 29.178]

Output: 132.302


Input: Consider Input: [242.481, -6.824, -8.251, 146.425, 140.969, 6.919, -83.599, -59.12, 124.042]


Output: 55.894