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]: [207.804, 175.122, 13.63, 217.625, -98.484]
[EX A]: 103.139

[EX Q]: [206.606, -76.103, -16.863, 44.126, 4.019, 15.088]
[EX A]: 29.479

[EX Q]: [-7.898, -72.702, -38.265, -19.34, 121.705, 56.761, 130.055, 38.452]
[EX A]:
26.096

