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: [192.74, 78.623, -5.937, 144.535]

Answer: 102.49


Question: [223.847, 115.483, 148.407, -44.824, 99.251, 36.833, -45.949]

Answer: 76.15


Question: [126.17, -18.839, 195.35, -89.232, 243.415]

Answer:
91.373