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: [123.511, 37.811, 249.595, -25.324]

Answer: 96.398


Question: [-90.211, -60.08, 99.87, 18.704, 197.269, 173.722, 168.875]

Answer: 72.593


Question: [72.573, 198.024, 64.573, -98.444, -67.787, -46.476, -51.596, 139.0]

Answer:
26.233