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:
[-61.905, -98.66, 90.472, 237.317, 5.243, 196.933]

Ex Output:
61.567


Ex Input:
[226.287, 114.252, -53.47, 8.606, 234.708, -31.872, 163.615]

Ex Output:
94.589


Ex Input:
[66.572, -62.148, 181.054, 103.441, 39.199, 232.343]

Ex Output:

93.41