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.

[122.737, 189.477, -4.853, 150.031, 126.296, 240.809, 204.743, 29.178]
132.302

[-53.388, 31.309, 19.079, -16.926, 242.421, 210.599]
72.182

[59.352, 170.19, -61.137, 201.666, -54.68, 212.091, -25.142, 54.642]

69.623