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.

[193.711, 110.309, -20.334, 151.607, 158.797, -97.825, -59.931]
62.333

[197.424, 44.178, 136.316, 246.48, 98.472, -31.327, 41.411]
104.708

[49.725, 163.873, -54.713, 220.401, 4.501]

76.757