Practice Quiz 2 (Ch 3–4)

Name: ___________________________________

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Initials: ____________

Written Portion

Question 1  (3 pts)

Based on the code snippet, circle the best example for each term.

def can_vote(age, registered):
    if registered:
        if age <= 0:
            message = "Input Error: Age is invalid!"
        elif age < 18:
            message = "You have to be at least 18 to vote!"
        else:
            message = "You are eligible to vote!"
    else:
        message = "You are not registered to vote!"
    return message

print(can_vote(0, True))

Argument

• age
• can_vote
• message
• True ✓

Function Call

• can_vote(0, True) ✓
• def can_vote(age, registered)
• message = "You are eligible to vote!"
• return message

Local Variable

• age
• can_vote
• message ✓
• registered

Boolean Literal

• age < 18
• registered
• True ✓
• 0

Function Definition

• can_vote(0, True)
• def can_vote(age, registered) ✓
• message = "You are eligible to vote!"
• return message

Parameter

• age ✓
• message
• print
• 0

Question 2  (4 pts)

def first(a, b):
    second(b, a)
    print(f"First: {a} {b}", end=" ")

def second(x, y):
    print(f"Second: {x} {y}", end=" ")

---

a. What will be printed when second() is called as follows?

x = "car"
y = "tree"
second(y, x)  # Note the argument order!

    Second: tree car

---

b. What will be printed when first() is called as follows?

x = "car"
y = "tree"
first(x, y)

    Second: tree car First: car tree

---

Question 3  (3 pts)

Evaluate the logic expressions below.

Expression	Result (True, False, or Error)
10 + 4 >= 11	True
False or True and False	False
not 4 > 2 or 5.4 < 4.5	False
True and False or 5 = 4	Error
3 < 5 and 3 <= 3	True
"CS149"[4] == 9	False

Coding Portion

Note

On quizzes, you are required to write a docstring only at the top of the file:

"""Practice Quiz 2.

Author: Your Name
Version: The Date
"""

You are not required to write docstrings for functions. Just write the code.

Write the two functions described below in a single file named practice_quiz2.py.

percent_to_float  (5 pts)

"""Take the int percentage passed in and return it as the equivalent float.

Examples:
    percent_to_float(95) returns 0.95
    percent_to_float(50) returns 0.5

Args:
    percent (int): the percentage to convert

Returns:
    float: the percent as a float
"""

donut_fundraiser  (10 pts)

"""Calculate the amount of money a club raises by selling donuts.

- The club gets $2 per box of donuts sold.
- If they sell more than 50 boxes, they get a special rate of $3/box
    on all boxes sold.
- If they sell more than 100 boxes, then the donut company will give
    the club $200 in addition to the money they make per box.
- If the club has held more than 3 donut fundraisers in the past and
    sells over 100 boxes, the donut company will give the club an
    additional $300 bonus.

Examples:
    donut_fundraiser(30, 4)
            returns 60 ($2/box)
    donut_fundraiser(60, 0)
            returns 180 ($3/box)
    donut_fundraiser(110, 3)
            returns 530 ($3/box + $200 bonus)
    donut_fundraiser(110, 4)
            returns 830 ($3/box + $200 bonus + $300 bonus)

Args:
    boxes (int): the number of boxes sold
    times (int): the number of times the club has done a donut fundraiser

Returns:
    int: the amount of money raised for the club
"""