Create a set of functions that compute the mean, median, and mode of a set of
numbers. Section 5.4 - Example: Using a List to Find the Median of a Set of Numbers
provides a simple algorithm for calculating the median for a set of numbers. Each
Function should expect a list of numbers as an argument and return a single number
Each function should return O if the list is empty. Include a main function that tests
he three statistical functions with a given list. Do not use the statistics or math
nodules to create the functions. The functions must be created by you.