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]: [132.047, -2.027, 97.041, -49.199, 29.646, 3.384, 104.121, 237.857, 5.555]
[EX A]: 62.047

[EX Q]: [192.529, -67.249, 123.707, 41.987, 11.587, 202.189, 12.989]
[EX A]: 73.963

[EX Q]: [131.655, 184.498, 98.283]
[EX A]:
138.145