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: [2.481, 101.204, 232.207, 220.501, 121.383, -32.935, 217.05, 53.524]

114.427