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.
Input: [154.713, 118.74, 99.073, 95.236, 174.227, 181.785, 124.121, 94.638]

130.317