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]: [65.486, -51.995, 170.628, -23.998, 83.128, -57.38, 130.737, 214.738]
[EX A]: 66.418

[EX Q]: [-31.252, 246.934, 96.512, 19.356, -50.759, 134.528, 176.914, 17.007, 171.802]
[EX A]: 86.782

[EX Q]: [209.876, 221.87, 92.96, 227.551, 198.953, 94.793, 144.853, 246.192]
[EX A]:
179.631