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.

[-94.068, -52.758, 53.31, -5.178, -20.667, 100.51, 100.973, 168.318, 54.245, 210.951]
51.564

[182.852, 102.398, 200.428, -71.943, 50.578, -59.389, 0.465]
57.913

[197.144, 131.832, -28.69, -53.931, 144.685]

78.208