NPTEL » Python for Data Science

Assignment 1

Due date: 2019-09-11, 23:59 IST.

Your last recorded submission was on 2019-09-04, 21:20 IST

1 point

 The command used to clear console in Spyder is:-

 reset

 %clear

 %reset

 remove

1 point

Which of the following is a valid variable name?

 ‘.ram2’

 ‘ram.2’

 ‘ram_2’

 ‘2ram’00

1 point

Python files are saved with extension 

 .py

 .python

 .pe

 .pi

1 point

Which of the following statement is invalid?

 m_n_q = 3500

 m.n.q = 3500, 3600, 3700

 m,n,q = 3500, 3600, 3700

 mnq = 350036003700

1 point

The command to display an output in Python is:-

 display( )

 output( )

 run( )

 print( )

1 point

Assignment operator used in Python is: -

 ==

 >>

 <-

 =

1 point

Consider the variables a and b. Values of a and b are 280 and 15 respectively. The operation that will return a remainder is: -

 a/b

 a%b

 a**b

 a*b

1 point

Python command used to calculate 25 is given by:-

 2*5

 2^5

 2**5

 2.exp(5)

1 point

The values of variables p and q are 15 and 3 respectively. What is the value of ‘p’ after running the code below?
    p*=q

 15

 3

 18

 45

1 point

 Which command would you use to find the data type of a variable

 data( )

 type( )

 typeof( )

 str( )

1 point

Value of variable p is 45. Command to coerce p from integer datatype to float datatype is:-

 p=p.astype(‘float’)

 p=float(p)

 p=p.type(‘float’)

 p=p.istype(‘float ’)

1 point

Indicate which command would you use to set the working directory

 setwd()

 os.chdir()

 getwd()

 cd()

1 point

Comments in Python begin with

 %

 &

 #

 \

1 point

 What type of object is x? 

   x=(“Python”, “version”, “3.7”)

 List

 Tuple

 String

 Array

1 point

Which of the following method can be used to initialize multiple variables with a common value?
1.x=y: y=33
2.x=y=z=33
3.x=33; y=x; z=y
4.x,y,z=33

 1 and 2

 2 and 3

 1 and 4

 2 and 4

1 point

What will be the output after the following statements are executed?

X=300 

Y= 17

X%=Y

print(X)

 11

 17.6

 300

 17

1 point

What is the command to clear a single variable ‘a’ from the variable explorer?

 %reset

 % clear

 del a

 rm a

1 point

Which of the package is used for visualization in Python

 ggplot2

 matplotlib

 seaborn

 All of the above

1 point

 “not in” belongs to which type of operator in Python?

 membership 

 bitwise

 logical

 arithmetic

1 point

“is not” belongs to which type of operator in Python?

 membership

 identity

 logical

 equality

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