QUESTION 1:

Complete the function below that takes a Python list as an argument. You can assume the list will only contain numbers. Use a for- or while-loop to compute the total (i.e. sum) of all the entries in alist. The function should return only the total. For example, calling the function with

list_sum([1, 2, 3]) 

will return 6

WITHOUT USING THE THE COMMAND SUM()

|def list_sum(alist): return #sum of all entries in list|

QUESTION 2:

Complete the function below that takes a Python list as an argument. You can assume the list will only contain numbers. Use a for- or while-loop to compute the cumulative sum at each entry of the input list. The function should return a list, where each value in the list is the sum of the value in the equivalent index in alist and all those before it in order. For example, calling the function with

cumulative_sum([1, 2, 3]) 

will return [1, 3, 6]. And

cumulative_sum([1, 3, 5, 8]) 

will return [1, 4, 9, 17].

|def cumulative_sum(alist): return #list containing cumulative sums|