Detailed Instructions: 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.
Q: [201.059, -91.982, 34.307, 22.568, 181.399, -13.055, 220.963, 114.027, 128.754]
A:
88.671