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: [53.391, 118.782, 102.742]

Answer: 91.638


Question: [57.506, 172.357, 191.473, 131.849]

Answer: 138.296


Question: [102.137, 68.215, 58.59, 33.217, 66.776, 139.924, 54.927, -5.843, 207.756, 233.008]

Answer:
95.871