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]: [196.683, 97.538, 247.799, 203.036, 203.369, -15.737]
[EX A]: 155.448

[EX Q]: [182.34, 105.105, 248.658, 104.174, -98.917, -47.707, -61.048, 241.903, -34.659, 31.89]
[EX A]: 67.174

[EX Q]: [175.55, -37.411, 206.709]
[EX A]:
114.949