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: [-17.106, 23.8, -54.195, 233.82, -99.732, -68.488, 215.616]

Answer: 33.388


Question: [73.603, -84.154, 222.739, 205.594, 215.842]

Answer: 126.725


Question: [-65.716, 132.384, 168.57]

Answer:
78.413