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]: [-89.318, 247.959, 25.441, -92.763, 172.246, -57.286, 181.58]
[EX A]: 55.408

[EX Q]: [125.67, 5.514, 161.93, 107.05, 118.949, 233.815, 230.211]
[EX A]: 140.448

[EX Q]: [24.936, 118.724, 203.784, 6.739, 156.178, 111.211, -27.508, -81.763, 206.653, -14.826]
[EX A]:
70.413