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.

[EX Q]: [89.776, -37.895, -45.315, 75.805, 144.052, 150.156]
[EX A]: 62.763

[EX Q]: [-61.513, 183.183, 185.709, 179.801, 194.827, 91.62, 229.939, -7.981, 123.813, -77.981]
[EX A]: 104.142

[EX Q]: [179.702, 5.716, -42.593, 0.789, -44.015, 63.789, 245.118]
[EX A]:
58.358