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]: [214.036, 24.752, 106.748, 206.9, 42.432, 233.646]
[EX A]: 138.086

[EX Q]: [176.017, -45.57]
[EX A]: 65.224

[EX Q]: [28.797, 188.196, 148.309, 197.013, -45.842, 189.915, 249.708]
[EX A]:
136.585