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.

[EX Q]: [181.256, -78.191, 162.427, -90.527, 123.709, 248.073]
[EX A]: 91.124

[EX Q]: [-30.66, 134.777, 39.637, -41.053, 60.502, -99.875, -32.055, 51.52, 216.645, 11.994]
[EX A]: 31.143

[EX Q]: [43.591, 198.718, 11.835, 59.339, 114.192, 121.295, 129.154, 125.966, 23.06]
[EX A]:
91.906