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: [98.834, 143.231, 35.995, -64.696]

Output: 53.341


Input: Consider Input: [231.159, 217.795, 230.676, -11.951, -82.697, 31.413]

Output: 102.732


Input: Consider Input: [193.756, 55.407, 125.573, 43.137, -98.689, 133.615, 242.75]


Output: 99.364