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: [-32.624, 225.642, 63.699, 188.552, 69.714, 245.564, 95.67, -5.252, -14.199, -88.529]

74.824