NPTEL! Python For Data Science Week 1 Answer 2024

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Week 1 : Assignment 1

Due date: 2024-02-07, 23:59 IST.

Your last recorded submission was on 2024-01-13, 07:51 IST

1 point

What is the output of the following code?

 36

 121212

 123

 Error: Invalid operation, unsupported operator ‘*’ used between ‘int’ and ‘str’

ANSWER : 36

1 point

What is the output of the following code?

 -1

 -2

 -1.28

 1.28

ANSWER : -2

1 point

Consider a following code snippet. What is a data type of y$�$?

 int

 float

 str

 Code will throw an error

ANSWER : str

1 point

Which of the following variable names are INVALID in Python?

 1_variable

 variable_1

 variable1

 variable#

ANSWER : 1_variable

                    variable#

1 point

While naming the variable, use of any special character other than underscore(_) will throw which type of error?

 Syntax error

 Key error

 Value error

 Index error

ANSWER : Syntax Error

1 point

Let x = “Mayur”. Which of the following commands converts the ‘x’ to float datatype?

 str(float,x)

 x.float()

 float(x)

 Cannot convert a string to float data type

ANSWER : D. Cannot convert a string to float data type

1 point

Which Python library is commonly used for data wrangling and manipulation?

 Numpy

 Pandas

 scikit

 Math

ANSWER : Pandas

1 point

Predict the output of the following code.

 12.0

 12

 11.667

 11

ANSWER : 12

1 point

Given two variables, j = 6 and g = 3.3. If both normal division and floor division operators were used to divide j by g, what would be the data type of the value obtained from the operations?

 int, int

 float, float

 float, int

 int, float

ANSWER : float, float

1 point

Let a = 5 (101 in binary) and b = 3 (011 in binary). What is the result of the following operation?

 3

 7

 5

 1

ANSWER : 1

<code>

print("=============== Answer 1 ===============")

a = 3

b = "12"

print(type(a*12))

print(a*12)

print("=============== Answer 2 ===============")

a = -9//7

print(a)

print("=============== Answer 3 ===============")

x = 15

y = str(float(x))

print(type(y))

print("=============== Answer 4 ===============")

variable_ = 1

# variable# = 3

# 1_variable = 1

variable_1 = 2

print("=============== Answer 5 ===============")

# variable@ = 3

print("=============== Answer 6 ===============")

x = "Mayur"

# float(x)

print("=============== Answer 8 ===============")

x = 10

y = 5

z = 3

ans = x + y % z

print(ans)

print("=============== Answer 9 ===============")

j = 6

g = 3.3

print(type(j//g))

print(type(j/g))

print("=============== Answer 10 ===============")

a = 5

b = 3

print(a & b)

</code>