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: [22.306, 72.768, 218.947, 52.973, 100.121, 157.59, -92.109]

Answer: 76.085


Question: [72.326, -74.6, 127.566, -54.848, 198.529, -44.061, -28.155]

Answer: 28.108


Question: [6.661, 235.046, 172.65, -68.719, 215.995]

Answer:
112.327