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: [-46.614, -16.023, 223.487, -76.237, 181.105, 88.893, -71.628, -76.002, 45.858, 247.056]

49.99