Question

def main():

    print('This program determines whether you have hypertension.')

    systolic_pressure = float(input('Enter your systolic pressure: '))

    diastolic_pressure = float(input('Enter your diastolic pressure: '))

    # insert statement here to call the hypertension_tester function

def hypertension_tester(dp, sp):

    if sp >= 140 or dp >= 90:

        print('You have hypertension')

    else:

        print('You do not have hypertension')

main()

A person has hypertension if systolic pressure is 140 or above or diastolic pressure is 90 or above. Which of the following statements correctly calls the hypertension_tester function?

	A.	hypertension_tester(diastolic_pressure, systolic_pressure,  )
	B.	hypertension_tester(sp=systolic_pressure, dp=diastolic_pressure)
	C.	Both (A) and (B) are correct
	D.	Both (A) and (B) are incorrect

def main():

    num1 = float(input('Enter a number: '))

    num2 = float(input('Enter another number: '))

    difference, total = sum_diff(num1, num2)

    print('Their total is', total)

    print('Their difference is', difference)

# Insert definition of the sum_diff function here

main()

Which of the following definitions of the sum_diff function is correct?

	A.	def sum_diff(x, y):     sum = x + y     diff = x - y     return sum     return diff
	B.	def sum_diff(x, y):     sum = x + y     diff = x - y     return diff, sum
	C.	def sum_diff(x, y):     sum = x + y     diff = x - y
	D.	def sum_diff(x, y):     sum = x + y     diff = x - y     return sum, diff

my_dict = {21 : 'Amy', 45 : 'Bob', 62 : 'Connie', 57 : 'Dave'}

Which of the following statements will display the string 'Bob'?

	A.	print(my_dict[1])
	B.	print(my_dict[45])
	C.	print(my_dict['45'])
	D.	None of the above

Which of the following statements creates an empty set in Python?

	A.	my_set = ( )
	B.	my_set = set()
	C.	Both (A) and (B) create an empty set
	D.	None of the above

Suppose all elements in the set my_set are integers. Which of the   following Python program fragments selects all even numbers from my_set   and stores them in my_set2?    

	A.	my_set2 = {x for x in my_set if x % 2 == 1}
	B.	my_set2 = [x for x in my_set if x % 2 != 0]
	C.	my_set2 = {x for x in my_set if x % 2 == 0}
	D.	none of the above

Answer 1

1) C Both (A) and (B) are correct
hypertension_tester(diastolic_pressure, systolic_pressure, )
hypertension_tester(sp=systolic_pressure, dp=diastolic_pressure)
Both are valid

Function calling in python:
def func(x):
   print(x)
func(10)   #print 10
func(x=10)   #print 10

2) B
difference, total = sum_diff(num1, num2)
We are expecting difference first and then total.
So it should return diff, sum

def sum_diff(x, y):
    sum = x + y
    diff = x - y
    return diff, sum

3) B print(my_dict[45])
Bob is the value of key 45, so we can access Bob using my_dict[45].
And 45 is an integer type in dictionary.

4) B my_set = set()
my_set = ( ) represents an empty tuple
my_set = set() represents an empty set

5) C my_set2 = {x for x in my_set if x % 2 == 0}
A number is said to be even number if it is divisible by 2 i.e. num%2==0 then num is even else odd.
my_set2 = {x for x in my_set if x % 2 == 0}