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: [-86.423, 157.154, 69.563, -67.516, 147.66, 216.018, 213.404]

Answer: 92.837


Question: [-94.827, -4.806, 33.138, 11.562, -68.261]

Answer: -24.639


Question: [-78.743, -54.721, -68.587, 3.417, -84.896]

Answer:
-56.706