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: [-77.226, 44.49]

Answer: -16.368


Question: [-10.287, -0.47, 195.152, 209.845, -64.645, -82.959, 106.327]

Answer: 50.423


Question: [-8.346, 174.481, -50.168, -58.647, 118.544, 134.063, 210.363]

Answer:
74.327