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]: [230.375, -45.327, 112.137, 109.305]
[EX A]: 101.622

[EX Q]: [192.335, 189.22, 235.216, 130.727, 222.285]
[EX A]: 193.957

[EX Q]: [240.737, -82.618, 64.972, 26.043, 49.738, -69.772, 84.096, -78.108]
[EX A]:
29.386