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: [155.513, 206.938, 235.799]

Answer: 199.417


Question: [-90.211, -60.08, 99.87, 18.704, 197.269, 173.722, 168.875]

Answer: 72.593


Question: [-3.07, 84.881, -71.71, 233.544, -77.459, 231.383, 71.796, 189.943, 98.833, -62.965]

Answer:
69.518