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.

[235.595, 227.906, -52.328, 100.922, 124.177, 149.582, -41.738]
106.302

[202.411, 127.775, 165.721, -41.545, 113.127, 229.974, 111.13, 208.686, 92.744, 36.522]
124.654

[156.072, -97.615, 183.405, 166.972, 2.398, -19.946, 162.579, 170.298, 47.56, 31.761]

80.348