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]: [243.697, 165.796, 114.518, 207.298, 191.227]
[EX A]: 184.507

[EX Q]: [61.761, 6.557, -93.386, -74.064, 33.4, 141.295]
[EX A]: 12.594

[EX Q]: [151.566, 66.145, 226.139, 96.531, -36.096, 56.396, -70.189, 208.907, 3.782]
[EX A]:
78.131