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.
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Question: [225.697, 75.029]

Answer: 150.363


Question: [64.523, 131.207, -30.223, -95.659]

Answer: 17.462


Question: [118.234, 117.961, 187.863, 135.624]

Answer:
139.92