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.

[EX Q]: [234.404, 162.933, 178.375, 10.683, 181.727, -50.587, 169.507, -72.896, 168.06, 238.363]
[EX A]: 122.057

[EX Q]: [-57.148, -59.655, 208.462, 223.004, 100.684, 188.569]
[EX A]: 100.653

[EX Q]: [98.886, 63.645, -14.731, 210.942, 79.254, 127.742, 246.042]
[EX A]:
115.969