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]: [193.711, 110.309, -20.334, 151.607, 158.797, -97.825, -59.931]
[EX A]: 62.333

[EX Q]: [216.087, 41.07, 213.683, 53.822, 31.214]
[EX A]: 111.175

[EX Q]: [233.018, -85.207, 246.238, 217.62, 162.549, -92.137, -1.654, -17.538, -11.29]
[EX A]:
72.4