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: [-32.499, 21.999, 235.435, 58.638, -57.806, 224.947, 74.782]

Output: 75.071


Input: Consider Input: [74.43, 138.738, 114.237, 138.845, 188.957, 103.103, -43.988, -68.085, 157.274]

Output: 89.279


Input: Consider Input: [197.891, -14.144, 24.247, -79.353]


Output: 32.16


