PYTHON DATA ANALYSIS EXAM

Question 1

Comments in Python refer to a piece of text intended for information. Comments can be added in python with ____________________?

Question 2

Two common ways of accessing the elements of a series are ____ and ______

Question 3

Python data types include the following except __________________?

Question 4
What will be the output of print(df.loc[:])?

Question 5

To count the total number of rows of data in a data frame, which command can be used?

Question 6

Which of the following is used to fill missing values in a dataframe?

Question 7

In Python language, a square bracket [] is used to signify a ___________________

Question 8

Python is a versatile language that can be used for the following except _______________?

Question 9

Ben works in an IT company where his boss asked him to prepare a chart in Python. However, Ben is confused as to what library is suitable for visualization. Help him decide

Question 10

All the UPPERCASE in a string can be converted into lowercase by using which method?

Question 11

Given a List1 is [3, 5, 25, 1, 3]. What is min(list1)?

Question 12

Write statement to transpose dataframe DF.

Question 13

Which of the following is correct for naming variables in Python language?

Question 14

Given a string EXAMPLE = “HELLO”, What is the output of EXAMPLE.COUNT(“L”)?

Question 15

The curly bracket {} is used in python language to signify what data type?

Question 16

Which command is used to add an element to add an element to a list?

Question 17

Which of the following signifies a missing data in a pandas DataFrame?

Question 18

df.head() will display ___________________?

Question 19

For a data frame df[:] = 0 will

Question 20

Martha was given the following command to delete a column ‘pub’ from ‘book’ dataframe. book.drop(‘pub’), but she is not getting the desired output, help her to select correct statement.

Question 21

A column is a  _________ representation of data.

Question 22

Choose whether the following statement is True or False: A data frame is an unstructured representation of data

Question 23

Which one of these skills is not required to become a Data Scientist?

Question 24

Which of the following object you get after reading CSV file?

Question 25

Which of the following is a visualization library in Python language?

Question 26

Which of the following process involves structuring datasets to facilitate analysis?

Question 27

Which of the following is used to extract data from HTML code of websites?

Question 28

Which of the following function gives information about top level data?

Question 29

What is a correct syntax to create a Pandas DataFrame?

Question 30

What is a correct syntax to return both the first row and the second row in a Pandas DataFrame?

Question 31

What is a correct syntax to return both the first row and the second row in a Pandas DataFrame?

Question 32

For the Pandas tail() method, how many rows are returned by default, if you do not specify it?

Question 33

What is a correct Pandas method for removing rows that contains empty cells?

Question 34

What is a correct method to fill empty cells with a new value?

Question 35

When using the Pandas dropna() method, what argument allows you to change the original DataFrame instead of returning a new one?

Question 36

What is a correct method to remove duplicates from a Pandas DataFrame?

Question 37

Which of the following libraries allows to manipulate, transform and visualize data easily and efficiently?

Question 38

A Series by default habve numeric data labelsstarting from _______________

Question 39

_________ Function is used to sort a series object on the basis of values

Question 40

Jack works in an IT firm as a Data Manager. He stored the salary of all employeed in a Series called “SalarySTf”. His boss asked him to filter the employees whose salary is more than 20000. Help him to find the correct code.