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.

[-64.231, 200.235, -9.547, -98.817, 222.577, 12.8, 214.705, 122.883, 216.246, 113.126]
92.998

[-8.87, 232.908, 141.714, -47.559, 161.192, 203.441]
113.804

[-18.796, 194.818]

88.011