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]: [229.461, -89.251, 170.954]
[EX A]: 103.721

[EX Q]: [208.988, -1.509, 123.136, -17.614, -52.895, 206.354, 46.43, 104.985, 181.221, 46.689]
[EX A]:
84.578