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]: [218.807, 72.849, 7.838, 124.81, 45.929, 239.888]
[EX A]: 118.354

[EX Q]: [-28.295, -24.828, -66.96, -12.108, -96.597, 110.99, 172.86, -18.752, 157.717]
[EX A]: 21.559

[EX Q]: [93.736, 145.866, -49.024, 149.876, 246.887, -95.296, 111.664]
[EX A]:
86.244