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.
--------
Question: [211.292, 92.275, 128.423, 242.327, -54.053, 89.501, 64.784]

Answer: 110.65


Question: [30.448, 132.545, 166.304, 202.59]

Answer: 132.972


Question: [-89.478, 226.607, 155.612, 132.397, -72.36]

Answer:
70.556