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]: [211.892, 69.725, 110.579, 178.646, 32.595, 163.527, 229.039, -42.103, 51.631, 165.973]
[EX A]: 117.15

[EX Q]: [-19.64, 5.69, 102.211, 159.062, 7.744, 242.03, 141.431, 105.364, 40.338]
[EX A]: 87.137

[EX Q]: [185.43, -65.359, -83.971, 30.359, -1.788, 181.168, 210.362, -90.041, -26.224, 239.651]
[EX A]:
57.959