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]: [223.847, 115.483, 148.407, -44.824, 99.251, 36.833, -45.949]
[EX A]: 76.15

[EX Q]: [157.631, 106.369, -25.319, 160.78, -87.597, 222.819, -60.99, 36.758, -3.695]
[EX A]: 56.306

[EX Q]: [-64.31, 66.053, 186.893, 104.617, -19.939, 169.377, -87.888]
[EX A]:
50.686