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]: [-3.281, 84.204, -74.415, 151.616, 14.048, -98.313, 95.625, -79.981]
[EX A]: 11.188

[EX Q]: [234.272, 196.413, -92.425]
[EX A]: 112.753

[EX Q]: [238.599, 179.49, 113.878, 177.897, 117.852, 199.154]
[EX A]:
171.145