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: [6.838, 74.884, -25.225, 46.999, 132.123, 88.956, -62.009, 23.885]

35.806