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.

Ex Input:
[233.848, -58.713, 126.623, 27.615, 62.365, 200.239, 13.38]

Ex Output:
86.48


Ex Input:
[202.411, 127.775, 165.721, -41.545, 113.127, 229.974, 111.13, 208.686, 92.744, 36.522]

Ex Output:
124.654


Ex Input:
[170.193, 3.616, 215.99, 173.329, 171.613, 193.589, 89.883, -69.397]

Ex Output:

118.602