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: [-40.246, -7.512, 174.245, -98.6]

Answer: 6.972


Question: [184.51, 79.649, 31.606, -65.279, 1.231]

Answer: 46.343


Question: [126.318, 190.383, 196.921, -91.649, 22.683, 202.417, 226.745]

Answer:
124.831