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Python for Data Science, AI & Development Final Exam Quiz Answers

Python for Data Scientific discipline, AI & Development

Final Exam Quiz Answers

Final Test

Question 1)

When slicing in Python what does the "0" in this statement [0:2] specify ?

It specifies the position to first the slice

Question 2)

If var = "01234567" what Python statement would impress out only the odd elements ?

print(var[1::2])

Question 3)

Consider the string Name="EMILY", what statement would return the alphabetize of 0 ?

Name.observe("E")

Question iv)

What is the type of the post-obit: 1.0

float

Question 5)

What is the upshot of the following code segment: int(three.99)

three

Question vi)

What is the result of the following lawmaking segment:1/ii ?

Question 7)

In Python three, what is the type of the variable ten afterwards the following: x=2/2 ?

bladder

Question eight)

Dictionary items tin exist:

Numerous data types

Question nine)

What is a tuple ?

A collection that is ordered and unchangeable

Question x)

What is the result of the post-obit performance: '1:2,3:iv'.separate(':') ?

['1', '2,3', '4']

Question eleven)

What is an important difference between lists and tuples ?

Lists are mutable tuples are not

Question 12)

How practise you bandage the list A to the set a ?

a=set(A)

Question 13)

If x=1 what will produce the beneath output ?

Mike

if(ten!=1):

print('Howdy')

else:

print('How-do-you-do')

print('Mike')

Question 14)

What argument will execute the remaining code no matter the end result ?

Finally

Question 15)

What add together function would return '4' ?

def add(10): return(x+x) add(2)

Question 16)

What method organizes the elements in a given list in a specific descending or ascending social club ?

sort()

Question 17)

What is the output for the beneath line of code ?

A=[8,5,2] for a in A: impress(12-a)

Question 18)

What is the output of the following ?

for i in range(1,5): if (i!=2): print(i)

Question 19)

What is the height of the rectangle in the class Rectangle ?

class Rectangle(object): def __init__(self,width=2,superlative =three,color='r'): self.height=tiptop self.width=width self.color=color def drawRectangle(self): import matplotlib.pyplot as plt plt.gca().add_patch(plt.Rectangle((0, 0),self.width, cocky.tiptop ,fc=self.color)) plt.centrality('scaled') plt.show()

three

Question 20)

What is the result of the following lines of code ?

a=np.array([0,i,0,ane,0]) b=np.assortment([i,0,1,0,1]) a/b

Division by zero mistake

Question 21)

What is the issue of the following lines of lawmaking ?

a=np.array([1,1,1,1,1]) a+ten

assortment([11, 11, eleven, 11, 11])

Question 22)

The post-obit line of code selects the columns forth with what headers from the dataframe df ?

y=df[['Creative person','Length','Genre']]

'Artist', 'Length' and 'Genre'

Question 23)

What is the method readline() used for?

It helps to read one consummate line from a given text file

Question 24)

Consider the following line of code:

with open("Example.txt","a") every bit file1:

What style is the file object in?

suspend

Question 25)

What does URL stand for ?

Uniform Resources Locator

Question 26)

When slicing in Python what does the "2" in this statement [0:2] specify ?

It specifies the position to end the slice

Question 27)

Consider the string Name="ABCDE", what is the result of the following operation Name.find("B") ?

Question 28)

What is the type of the following: 1.0

float

Question 29)

What following code segment would render a 3 ?

int(three.99)

Question 30)

When using the double slash "//" for integer sectionalisation the consequence will exist ?

Rounded

Question 31)

In Python iii what does regular division always consequence in ?

Float

Question 32)

Whatdata type must have unique keys ?

Dictionary

Question 33)

What is the syntax to obtain the first element of the tuple ?

A=('a','b','c')

A[0]

Question 34)

What does the split up() method return from a listing of words ?

The list of words in a string separated past a delimiter

Question 35)

What is an important difference betwixt lists and tuples ?

Lists are mutable tuples are not

Question 36)

What lawmaking segment is used to bandage listing "B" to the set "b" ?

b=set(B)

Question 37)

What code segment would output the following ?

for i in range(1,5): if (i!=1): print(i)

Question 38)

What is the consequence of the following lines of code ?

a=np.array([0,1,0,1,0]) b=np.array([1,0,1,0,i]) a*b

array([0, 0, 0, 0, 0])

Question 39)

What is the issue of the following lines of code ?

a=np.array([10,9,eight,seven,6]) a+ane

array([xi,10,9,viii,7])

Question 40)

How would yous select the columns with the headers: Creative person, Length and Genre from the dataframe df and assign them to the variable y ?

y=df[['Creative person','Length','Genre']]

Question 41)

Consider the file object: File1.What would the following line of code output?

file1.readline(4)

It would output the first four characters from the text file

Question 42)

Which line of code is in the mode of append ?

with open up("Example.txt","a") as file1:

Question 43)

In Python what argument would impress out the first 2 elements "Li" of "Lizz" ?

print(name[0:2])

Question 44)

In Python, if you executed var = '01234567', what would be the result of print(var[::2]) ?

0246

Question 45)

Consider the string Name="EMILY", what statement would return the index of 0 ?

Name.notice("Due east")

Question 46)

In Python what can exist either a positive or negative number but does not incorporate a decimal point ?

Question 47)

What following code segment would produce an output of "0.5" ?

Question 48)

In Python three what does regular division e'er upshot in ?

Float

Question 49)

What does the index of "one" correspond to in a list or tuple ?

The second element

Question 50)

Given the function add shown below, what does the following return ?

def add(x): return(x+x) add('i')

'eleven'

Question 51)

What function returns a sorted list ?

sorted()

Question 52)

What segment of code would output the following ?

A=['1','2','3'] for a in A: print(2*a)

Question 53)

What line of code would produce the following: assortment([11, 11, 11, 11, 11]) ?

a=np.array([1,1,1,1,ane]) a+10

Question 54)

In Python what information blazon is used to correspond text and non numbers ?

Question 55)

Whatdata type must accept unique keys ?

Dictionary

Question 56)

Lists are:

Mutable

Question 57)

What is the process of forcing your program to output an error message when it encounters an effect ?

Exception handling

Question 58)

A listing cannot exist sorted if it contains:

strings and numeric values

Question 59)

What is the method defined in the class Rectangle used to draw the rectangle?

course Rectangle(object): def __init__(self,width=two,meridian =three,color='r'): self.superlative=summit self.width=width self.color=colour def drawRectangle(self): import matplotlib.pyplot as plt plt.gca().add_patch(plt.Rectangle((0, 0),self.width, self.peak ,fc=cocky.color)) plt.axis('scaled') plt.show()

drawRectangle

Question sixty)

What is the result of the following lines of code ?

a=np.assortment([0,one,0,ane,0]) b=np.assortment([1,0,ane,0,1]) a+b

assortment([1, 1, ane, 1, 1])

Question 61)

What mode over writes existing text in a file ?

Write "west"

Question 62)

If var = "01234567" what Python argument would print out only the even elements?

print(var[::ii])

Question 63)

In Python 3 what following code segment will produce a float ?

1/two

Question 64)

What will this lawmaking segment "A[0]" obtain from a listing or tuple ?

The kickoff element of a list or tuple

Question 65)

What line of code would produce this output: ['1','2','three','4'] ?

'1,2,3,4'.split up(',')

Question 66)

What is an error that occurs during the execution of code ?

Exception

Question 67)

What add function would return '2' ?

def add(x): render(x+x) add together(1)

Question 68)

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

A=['ane','two','3'] for a in A: print(ii*a)

Question 69)

What code segment would output the following ?

for i in range(one,5): if (i==2): print(i)

Question 70)

What is the width of the rectangle in the class Rectangle?

class Rectangle(object): def __init__(self,width=2,height =3,color='r'): cocky.height=height self.width=width self.colour=color def drawRectangle(cocky): import matplotlib.pyplot as plt plt.gca().add_patch(plt.Rectangle((0, 0),self.width, self.height ,fc=self.colour)) plt.axis('scaled') plt.testify()

Question 71)

What is the result of the following lines of code ?

a=np.array([0,1,0,1,0]) b=np.assortment([1,0,i,0,one]) a+b