Write code that uses a series of Map, Filter, Reduce, and/or Sort transformations to compute the average of homework scores, not including 0s, which are stored in a list as textual strings. The list is stored in the variable scores . You must use functional programming methods; you may not use loops or list comprehensions. You must use the following transformation functions syntax:

map(func, list), and filter(func, list), and sort(list)

(Use pythonic code to fill in any needed function names)