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: [89.226, 241.396, 7.011, 114.867, 113.075, 103.559, 83.142, 188.743, -27.33, 180.773]

Output: 109.446


Input: Consider Input: [135.807, 205.755, 191.805]

Output: 177.789


Input: Consider Input: [22.104, 133.459, 92.99, -28.152, 199.669, 81.646]


Output: 83.619


