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: [153.482, 150.917]

Output: 152.2


Input: Consider Input: [-64.231, 200.235, -9.547, -98.817, 222.577, 12.8, 214.705, 122.883, 216.246, 113.126]

Output: 92.998


Input: Consider Input: [103.006, 88.714, 216.915, 48.578]


Output: 114.303


