Detailed Instructions: 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.
Q: [218.586, 30.112, 136.184, 145.044, 225.977, 114.078, 146.556]
A:
145.22