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: [70.862, 193.626, 106.469, 38.408, 176.582, 111.828, 189.262, 52.899, 68.363, 212.746]

122.104