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]: [-40.016, 117.495]
[A]: 38.74


[Q]: [99.278, 72.353, -21.292]
[A]: 50.113


[Q]: [245.96, -87.3, 123.817, 198.057, 54.044, -11.596, 144.35, -66.959, 122.372, -97.253]
[A]:
62.549