TASK DEFINITION: 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.
PROBLEM: [118.319, 70.462]

SOLUTION: 94.39

PROBLEM: [210.345, 91.115]

SOLUTION: 150.73

PROBLEM: [140.006, 202.125, 79.366, -16.642, 246.112]

SOLUTION:
130.193