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]: [14.166, 216.734, -23.073, 209.811, 203.336, 91.659, 142.602, 1.151, -39.869, -54.838]
[EX A]: 76.168

[EX Q]: [26.595, 220.402, -36.236, -79.382, -17.51, -71.282]
[EX A]: 7.098

[EX Q]: [204.634, 176.221, 167.577, 217.281, 38.905, -60.3, -17.617, -69.258, -5.581]
[EX A]:
72.429