Trace the loop, writing updated values for every iteration or until you identify the pattern
Subsection6.8.1Evaluate Loops-WE4-P1
ExercisesExercises
1.
Q16: What is the output of the following loop if the user input is: 10, 20, 30, 35, 40, -1
print("Enter a negative score to signal the end of the input.")
total = 0
count = 0
score = int(input("Score: "))
while score >= 0:
count += 1
total += score
score = int(input("Score: "))
print(total/count)
27.0
27
22.5
22
Runtime error
2.
Q17: What is the output of the following loop if the user input is: 10, 20, 30, 35, 40, -1?
print("Enter a negative score to signal the end of the input.")
total = 0
count = 0
score = int(input("Score: "))
while score >= 0:
score = int(input("Score: "))
count += 1
total += score
print(total/count)
27.0
22.5
24.8
20.666667
Runtime error
3.
Q18: What is the output of the following loop if the user input is: 10, 20, 30, 35, 40, -1
print("Enter a negative score to signal the end of the input.")
total = 0
count = 0
score = int(input("Score: "))
while score >= 0:
total += score
score = int(input("Score: "))
count += 1
print(total/count)
27.0
27
22.5
22
Runtime error
4.
Q19: What is the output of the following loop if the user input is: 20, 60, 75, 35, 95, -1
print("Enter a negative score to signal the end of the input.")
passing = 0
failing = 0
score = int(input(“Score: “))
while score >= 0:
if score >= 60:
passing += 1
else:
failing += 1
score = int(input(“Score: ”))
print("Percent passing: " + (passing / (passing + failing) * 100))
Percent passing: 60
Percent passing: 75
Percent passing: 80
Percent passing: 85
Percent passing: 90
5.
Q20: What is the output of the following loop if the user input is: 1, 3, 9, 6, 9, 2, -1
print(“Enter a negative value to signal the end of the input.”)
val = int(input(“Value: “))
max = value
min = value
val = int(input(“Value: “))
while val >= 0:
if val > max:
max = val
if val < min:
min = val
val = int(input(“Value: “))
print(“Maximum value was “ + max + “ and minimum value was “ + min)
