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.

[-96.229, 200.453]
52.112

[-19.769, 147.929, -36.133, 201.287, 28.528, -6.089, 122.533, 127.892, -36.662]
58.835

[182.258, -29.431, 183.159, 213.025, -52.846, 107.38, 57.19]

94.391

