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: [-7.057, 122.729, -78.932, 52.502, 191.819, 80.994, 29.505, -10.501]

Output: 47.632


Input: Consider Input: [54.715, 180.963, 239.308, 175.084, 147.044, 136.262, 184.009]

Output: 159.626


Input: Consider Input: [64.991, 221.636, -32.654, 160.852, -48.12, 176.115, 223.483, 51.997, 99.053, -69.184]


Output: 84.817