Create a MapReduce program in Python.$$ Using the u$.$data file that we used in the class demos, the MapReduce program should provide a list of all MovieIDs that have been rated and the average rating of each movie.$$ The output should have one row for each movie id along with the average rating for the movie.$$ Please submit the Jupyter Notebook file as demonstrated in class.

Hints:

$1)$ The Python$$ "Average" function is the mean$()$ function in the statistics package.

$2)$ When you split a line, values are returned as strings, so if you want to treat them as numbers, you will have to do some data type casting.