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]: [-19.769, 147.929, -36.133, 201.287, 28.528, -6.089, 122.533, 127.892, -36.662]
[EX A]: 58.835

[EX Q]: [-27.115, -11.908, 125.703, 202.749, 139.333, 242.982, -93.292, 161.484]
[EX A]: 92.492

[EX Q]: [182.88, 149.033, -93.8, -36.877, -48.041, -65.251, 78.856, 7.855, 44.956, 147.141]
[EX A]:
36.675