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: [12.155, 204.528, 85.84, 66.186]

Answer: 92.177


Question: [155.467, -40.717, -24.529, -22.608, 38.752]

Answer: 21.273


Question: [83.11, 93.052, 134.618]

Answer:
103.593