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]: [124.333, 5.477, -53.787, 226.538, -40.577, -43.102, 214.118, 125.785, 151.837]
[EX A]: 78.958

[EX Q]: [-41.714, 218.588, 49.769, 142.519, 179.776, -99.226, 224.69, 191.642]
[EX A]: 108.256

[EX Q]: [190.479, -22.942, 185.373, 132.005, 186.859, -41.484, 206.636, -59.431, -37.651]
[EX A]:
82.205