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.

Q: [-86.423, 157.154, 69.563, -67.516, 147.66, 216.018, 213.404]

A: 92.837
****
Q: [-17.106, 23.8, -54.195, 233.82, -99.732, -68.488, 215.616]

A: 33.388
****
Q: [-7.006, -64.467, -16.842, 47.282, 144.479]

A:
20.689
****