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.

[43.362, 111.151, 162.709, 43.974, 184.165, 238.15, 181.927]
137.92

[-46.14, -0.077, 72.663, 81.035, -24.144, 66.514, 98.199]
35.436

[-46.251, -60.671, -90.813, 212.531]

3.699