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]: [135.575, 134.352, 209.54, 199.614, 87.027, 215.933, 49.266, 167.288, 164.589]
[EX A]: 151.465

[EX Q]: [194.026, 179.483, 77.885, 111.339, 234.419, 138.685]
[EX A]: 155.973

[EX Q]: [195.469, 110.294, 150.829, 116.396, 133.183, 75.968, -18.798, 56.574, 67.084]
[EX A]:
98.555

