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]: [93.34, 211.631, 173.556, -91.68, 236.096]
[EX A]: 124.589

[EX Q]: [-51.496, 56.177, 55.554, -17.425, -6.185, 3.721]
[EX A]: 6.724

[EX Q]: [135.21, 119.426, 244.466]
[EX A]:
166.367

