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]: [138.602, 158.458, 241.327, 194.509, 169.45, -56.151]
[EX A]: 141.032

[EX Q]: [147.435, 237.403, -71.733, -63.056, -55.979]
[EX A]:
38.814