Python For Data Science Free Quiz For Beginners (2023)

Welcome to your Python for Data Science Quiz

Which of the following data types is not supported in python?

Numbers

String

List

Slice

What is the output of the following code? * print(type(lambda:None))

Which of the following is correct about dictionaries in python?

Python's dictionaries are kind of hash table type.

They work like associative arrays or hashes found in Perl and consist of key-value pairs.

A dictionary key can be almost any Python type, but are usually numbers or strings. Values, on the other hand, can be any arbitrary Python object.

All of the above.

In a Python program, a control structure:

Manages the input and output of control characters

Dictates what happens before the program starts and after it terminates

Defines program-specific data structures

Directs the order of execution of the statements in the program

What signifies the end of a statement block or suite in Python?

}

A line that is indented less than the previous line

A comment

end

Which of the function among will return 4 on the set s = {3, 4, 1, 2}?

Sum(s)

Len(s)

Max(s)

Both B and C

What gets printed? print(type(2/3))

What is the output of the following code? * print(type([2,4]))

What gets printed? p='qw' q=56 print(p+q)

qw qw

qw 56

Error

List in Python can hold elements of same type only. True or False? *

True

False

Which of the following is required to create a new instance of the class?

A constructor

A class

A value-returning method

A None method

What relationship is best suited for Employee and Person?

association

composition

inheritance

None of the above

Which of the following statements can be used to check, whether an object “obj” is an instance of class A or not?

obj.isinstance(A)

A.isinstance(obj)

isinstance(obj, A)

isinstance(A, obj)

Which of the following represents a template, blueprint, or contract that defines objects of the same type?

A class

An object

A method

A data field

Which of the following keywords mark the beginning of the class definition?

def

return

class

All of the above

NumPy is takes a longer execution time than a Python List

True

False

How many dimensions can a NumPy array have?

None of the Above

What is the function to check whether two arrays are equal?

concatenate

compare

equal

none of the above

What is the code to create a 3-dimensional array with random values?

import numpy as np np.random.random((3,3))

import numpy as np np.random.random(3,3)

import numpy as np np.rand.random((3,3))

import numpy as np np.rand.rand((3,3))

In pandas, Index values must be?

unique

hashable

Both A and B

None of the above

Which function from the options given below can read the dataset from a large text file?

read_json

read_pickle

read_hdf

read_csv

Which of the following is correct Features of DataFrame?

Potentially columns are of different types

Can Perform Arithmetic operations on rows and columns

Labeled axes (rows and columns)

All of the above

Which of the following is true?

If data is an ndarray, index must be the same length as data.

Series is a one-dimensional labeled array capable of holding any data type.

Both A and B

None of the above

Pandas key data structure is called?

Keyframe

DataFrame

Statistics

Econometrics

An image could be converted into a NumPy array.

True

False

How can you create your own color palette if you have the color codes stored in mypalette

sns.plot(sns.color_palette(mypalette))

sns.palplot(sns.palette(mypalette))

sns.palplot(sns.color(mypalette))

sns.palplot(sns.color_palette(mypalette))

Seaborn is built on top of matplotlib with default built-in themes

True

False

Which function should be used to display a plotted graph?

.display()

.print()

.show()

none of the above

If you want to show a distribution of data, which plot would choose from the following

Bar plot

Scatter plot

Pie chart

Area plot

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