Project stem 12.3 question 2 please help
Instructions
Write a method find_mean that finds the mean (average) of all the values in a dictionary parameter and returns it. You may assume that all values stored in the dictionary are numbers.
For, example the following call:
d = {"first": 1.5, "second": 8.5, "third": 6.5}
find_mean(d)
should return the number 5.5.