Python for Data Science, AI & Development Quiz Answers

All Weeks Python for Data Science, AI & Development Quiz Answers

This course will take you from zero to programming in Python in a matter of hours—no prior programming experience necessary! You will learn Python fundamentals, including data structures and data analysis, complete hands-on exercises throughout the course modules, and create a final project to demonstrate your new skills.

By the end of this course, you’ll feel comfortable creating basic programs, working with data, and solving real-world problems in Python. You’ll gain a strong foundation for more advanced learning in the field, and develop skills to help advance your career.

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Python for Data Science, AI & Development Week 01 Quiz Answers

Quiz : Module 1 Graded Quiz Answers

Q1. What is the value of x after the following lines of code?

x=2

x=x+2

  • 4
  • 2

Q2. What is the result of the following operation 3+2*2 ?

  • 3
  • 7
  • 9

Q3. What is the type of the following “7.1”

  • float
  • string

Q4. What is the result of the following code segment: int(True)

  • 1
  • 0
  • error

Q5. In Python, what is the result of the following operation: ‘1’+’2′ ?

  • 3
  • ‘3’
  • ’12’

Q6. Given myvar = ‘hello’ , how would you return myvar as uppercase?

  • len(myvar)
  • myvar.find(‘hello’)
  • myvar.upper()

Q7. What is the result of the following : str(1+1) ?

  • ‘2’
  • ’11’

Q8. What is the result of the following: “ABC”.replace(“AB”, “ab”) ?

  • ‘abC’
  • ‘ABc’

Q9. In Python 3, what is the type of the variable x after the following: x=1/1 ?

  • float
  • int

Python for Data Science, AI & Development Week 02 Quiz Answers

Quiz : Module 2 Graded Quiz Answers

Q1. Consider the tuple A=((11,12),[21,22]), that contains a tuple and list. What is the result of the following operation A[1] ?

  • (11,12)
  • [21,22]
  • ((11,12),[21,22])

Q2. Consider the tuple A=((1),[2,3],[4]), that contains a tuple and list. What is the result of the following operation A[2][0]?

  • 4
  • [4]
  • 1

Q3. The method append does the following:

  • adds one element to a list
  • merges two lists or insert multiple elements to a list

Q4. Consider the following list : A=[“hard rock”,10,1.2]

What will list A contain affter the following command is run: del(A[1]) ?

  • [10,1.2]
  • [“hard rock”,1.2]
  • [“hard rock”,10]

Q5. If A is a list what does the following syntax do: B=A[:] ?

  • assigns list A to list B
  • variable B references a new copy or clone of the original list A

Q6. What is the result of the following: len((“disco”,10,1.2, “hard rock”,10)) ?

  • 5
  • 6
  • 0

Q7. Consider the following dictionary:

{ “The Bodyguard”:”1992″, “Saturday Night Fever”:”1977″}

select the values

  • 1977″
  • “1992”
  • “The Bodyguard”
  • “Saturday Night Fever

Q8. The variable release_year_dict is a Python Dictionary, what is the result of applying the following method: release_year_dict.keys() ?

  • retrieve the keys of the dictionary
  • retrieves, the values of the dictionary

Q9. Consider the Set: V={‘A’,’B’}, what is the result of V.add(‘C’)?

  • {‘A’,’B’,’C’}
  • error
  • {‘A’,’B’}

Q10. What is the result of the following: ‘1’ in {‘1′,’2’} ?

  • False
  • True

Python for Data Science, AI & Development Week 03 Quiz Answers

Quiz : Module 3 Graded Quiz Answers

Q1. What is the output of the following code?

x="Go"

if(x=="Go"):

  print('Go ')

else:

  print('Stop')

print('Mike')
  • Go Mike
  • Mike
  • Stop Mike

Q2. What is the result of the following lines of code?

x=1
x>-5
  • True
  • False

Q3. What is the output of the following few lines of code?

x=0
while(x<2):
    print(x)
    x=x+1
  • 0
  • 1
  • 0
  • 1
  • 2
  • 0
  • 1
  • 3
  • 4

Q4. What is the result of running the following lines of code ?

class Points(object):
  def __init__(self,x,y):

    self.x=x
    self.y=y

  def print_point(self):

    print('x=',self.x,' y=',self.y)

p1=Points(1,2)
p1.print_point()
  • x=1;
  • x=1 y=2
  • y=2

Q5. What is the output of the following few lines of code?

for i,x in enumerate(['A','B','C']):
    print(i+1,x)
  • 1 A
  • 2 B
  • 3 C
  • 0 A
  • 1 B
  • 2 C
  • 0 AA
  • 1 BB
  • 2 CC

Q6. What is the result of running the following lines of code ?

class Points(object):

  def __init__(self,x,y):

    self.x=x
    self.y=y

  def print_point(self):

    print('x=',self.x,' y=',self.y)

p2=Points(1,2)

p2.x='A'

p2.print_point()
  • x= 1 y=2
  • x= A y=2
  • x=A, y=B

Q7. Consider the function step, when will the function return a value of 1?

def step(x):
    if x>0:
        y=1
    else:
        y=0
    return y
  • if x is larger than 0
  • if x is equal to or less then zero
  • if x is less than zero

Q8. What is the output of the following lines of code?

a=1

def do(x):
    a=100
    return(x+a)

print(do(1))
  • 2
  • 101
  • 102

Python for Data Science, AI & Development Week 04 Quiz Answers

Quiz : Module 4 Graded Quiz Answers

Q1. What is the result of the following lines of code?

a=np.array([0,1])
b=np.array([1,0])
np.dot(a,b) 
  • 0
  • 1
  • array([1,1])

Q2. What is the value of Z after the following code is run?

X=np.array([[1,0],[0,1]])
Y=np.array([[0,1],[1,0]])
Z=X+Y
  • array([[1,1],[1,1]])
  • array([[1,0],[0,1]])
  • array([[0,1],[1,1]])

Q3. What values does the variable out take if the following lines of code are run?

X=np.array([[1,0,1],[2,2,2]]) 
out=X[0:2,2]
out
  • array([1,0])
  • array([1,2])
  • array([1,1])

Q4. What is the value of Z after the following code is run?

X=np.array([[1,0],[0,1]])
Y=np.array([[2,2],[2,2]])
Z=np.dot(X,Y)
  • array([[2,2],[2,2]])
  • array([[2,0],[0,2] ])
  • array([[3,2],[2,3]])

Q5. Consider the following text file: Example1.txt:

This is line 1

This is line 2

This is line 3

What is the output of the following lines of code?

with open("Example1.txt","r") as file1:
  
    FileContent=file1.read()
    
    print(FileContent)
  • This is line 1
  • This is line 2
  • This is line 3
  • This is line 1
  • This

Q6. What do the following lines of code do?

with open("Example1.txt","r") as file1:
  
  FileContent=file1.readlines()

  print(FileContent)
  • Read the file “Example1.txt”
  • Write to the file “Example1.txt”
  • Append the file “Example1.txt”

Q7. What do the following lines of code do?

with open("Example.txt","a") as writefile:
  
  writefile.write("This is line A\n")
  writefile.write("This is line B\n")
  • Read the file “Example.txt”
  • Append the file “Example.txt”
  • Write to the file “Example.txt”

Q8. What task do the following lines of code perform?

with open('Example2.txt','r') as readfile:
    with open('Example3.txt','w') as writefile:
          for line in readfile:
                writefile.write(line)
  • Check the mode of the open function for each file object.
  • Copy the text from Example2.txt to Example3.txt.
  • Print out the content of Example2.txt.

Q9. Consider the dataframe df. How would you access the element in the 1st row 3rd column

  • df.iloc[2,0]
  • df.iloc[1,3]
  • df.iloc[0,2]

Q10. What method gets the unique elements of the following: df[‘Length’] ?

  • unique
  • head

Python for Data Science, AI & Development Week 05 Quiz Answers

Quiz : Module 5 Graded Quiz Answers

Q1. What are the 3 parts to a response message?

  • Start or status line, header, and body
  • Bookmarks, history, and security
  • Encoding, body, and cache
  • HTTP headers, blank line, and body

Q2. What is the purpose of this line of code “table_row=table.find_all(name=’tr’)” used in webscraping?

  • It will find all of the data within the table marked with a tag “tr”
  • It will find all of the data within the table marked with a tag “h1
  • It will find all of the data within the table marked with a tag “a
  • It will find all of the data within the table marked with a tag “p

Q3. In what data structure do HTTP responses generally return?

  • Tuples
  • Nested Lists
  • JSON
  • Lists

Q4. The Python library we used to plot the chart in the lab is

  • Plotly
  • MatPlotLib
  • Pandas
  • PyCoinGecko
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