These multiple choice quesitons are for the “Storing Multiple Values in Lists” lesson.
Formative Assessment
Consider the following code:
fruit = ['apple', 'orange', 'grapes', 'peach']
fruit[2] = 'lemon'
for item in fruit:
print item
What will be printed?
a)
apple
lemon
grapes
peach
b)
apple
orange
lemon
peach
c)
['apple', 'lemon', 'grapes', 'peach']
d)
['apple', 'orange', 'lemon', 'peach']
Summative Assessment
Consider the following code:
evens = [2, 4, 6, 8, 10]
evens.append(16)
del evens[4]
print evens[2:]
What will be printed?
a)
[4, 6, 10, 16]
b)
6
8
16
c)
[6, 8, 16]
d)
[4, 6, 8, 16]
Explanation of distractors:
a) Follows the misunderstanding that lists are indexed starting at 0, not 1; the student might choose this if he/she assumes that the first item is the 1st element, not the 0th.
b) Follows the misunderstanding that items in lists are printed out separately
(as if the items were printed out individually in a for loop), instead of
as a list datatype.
c) This is the correct answer.
d) Similar to (a), but here the student believes that lists are 0-indexed when deleting items, but are 1-indexed when printing items.