You must submit your own work and only use concepts being taught in class. No break, no continue, no pass statement in your solutions. Solve all problems in one file called ListTraversals.py 1. Average of numbers in a list Define and test (2 times) a value-retuming function average(anyList) that calculates and returns the average of all items of a list of numbers, given as parameter. The function will return 0 if the list entered is empty. Use a for loop for the list traversal. For each test, what is the expected value of the function? Write your answer in a comment just above the respective function call. 2. Count Words with 'ea' Define and test (2 times) a value-returning function countWords(anyList) that counts and returns how many strings of a list of strings, given as parameter, contain a substring 'ea'. Use a while loop for the list traversal. For each test, what is the expected value of the function? Write your answer in a comment just above the respective function call. Challenges: a) Count words with substrings 'ea', each letter capitalized or not. b) Add a second parameter to your function that allows to specify any substring. 3. Print Long Words Define and test a void function printLongWords(anyList) that prints all items of a list of strings, given as parameter, that are longer than 3 characters. Use a for-loop over the range of the indices for your solution. Challenge: Add a second parameter to the function that allows to enter any length (not just 3 characters). Submit your solutions before the due date. You must submit your own work and only use concepts being taught in class. No break, no continue, no pass statement in your solutions. Solve all problems in one file called ListTraversals.py 1. Average of numbers in a list Define and test (2 times) a value-retuming function average(anyList) that calculates and returns the average of all items of a list of numbers, given as parameter. The function will return 0 if the list entered is empty. Use a for loop for the list traversal. For each test, what is the expected value of the function? Write your answer in a comment just above the respective function call. 2. Count Words with 'ea' Define and test (2 times) a value-returning function countWords(anyList) that counts and returns how many strings of a list of strings, given as parameter, contain a substring 'ea'. Use a while loop for the list traversal. For each test, what is the expected value of the function? Write your answer in a comment just above the respective function call. Challenges: a) Count words with substrings 'ea', each letter capitalized or not. b) Add a second parameter to your function that allows to specify any substring. 3. Print Long Words Define and test a void function printLongWords(anyList) that prints all items of a list of strings, given as parameter, that are longer than 3 characters. Use a for-loop over the range of the indices for your solution. Challenge: Add a second parameter to the function that allows to enter any length (not just 3 characters). Submit your solutions before the due date