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]: [124.333, 5.477, -53.787, 226.538, -40.577, -43.102, 214.118, 125.785, 151.837]
[EX A]: 78.958

[EX Q]: [98.834, 143.231, 35.995, -64.696]
[EX A]: 53.341

[EX Q]: [93.048, 173.783, 88.736, -95.085, -77.155, -2.381, -84.313]
[EX A]:
13.805