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]: [165.647, 110.893, -83.152, -56.699, 19.53, 48.825, -64.043, 199.192, 249.46, 244.789]
[EX A]: 83.444

[EX Q]: [20.796, 39.383, -26.46, -27.224, 89.591, 87.502, 211.781, 127.87, 223.38]
[EX A]: 82.958

[EX Q]: [66.743, 156.936, 197.214, 118.73, 13.044, -94.04, -61.492, -93.247, -84.294, 16.947]
[EX A]:
23.654