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: [169.421, 88.16]

Answer: 128.791


Question: [160.713, 125.985, 186.982, -94.178, 183.77]

Answer: 112.654


Question: [21.953, 12.71, -60.022, 17.165, 98.53, 87.71, 92.772, 179.216, -40.505]

Answer:
45.503