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]: [198.323, 108.702, 38.704, -8.85, 57.749, 108.604, -20.56, 229.826, -85.953, 177.128]
[EX A]: 80.367

[EX Q]: [245.271, 40.965, 133.913, 212.104]
[EX A]: 158.063

[EX Q]: [-82.703, -39.074, 53.456, 233.114, 189.007]
[EX A]:
70.76