Definition: 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: [11.254, -38.6, -5.333, 59.487, 176.658, 92.193, -9.753, 233.793]

64.962