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:
[38.24, 196.576, -84.173, -45.001, 1.607, 170.177, 234.811, -60.183, -91.513]

Ex Output:
40.06


Ex Input:
[-1.833, 218.553, -61.132, -19.027, 87.034]

Ex Output:
44.719


Ex Input:
[188.928, 120.164, 90.363, 172.394, 57.603, 126.05, 225.848, -9.867, -61.872, 59.334]

Ex Output:

96.894