Pandas and Data Visualization Quiz

What is the purpose of Data Alignment in Pandas?

• Ensure proper indexing when performing operations

• Align text in a DataFrame

• Change column names

• Sort data in ascending order

Which function sorts a Pandas DataFrame?

• df.sort_values()

• df.sort_index()

• df.order()

• Both a and b

What does the term "Index Hierarchy" refer to in Pandas?

• Multi-level indexing

• Sorting values by index

• Searching indexes

• None of the above

Which function is used to gather information from web APIs?

• requests.get()

• pd.read_api()

• np.api_call()

• api.fetch()

What is an "Open Data Source"?

• Freely available datasets

• Data that is only accessible with permission

• Data stored in private databases

• None of the above

What is the primary use of Pandas Series?

• One-dimensional labeled data structure

• Two-dimensional labeled data structure

• Multi-dimensional array

• Data visualization

What function is used to check missing values in a DataFrame?

• isnull()

• notnull()

• dropna()

• fillna()

How do you merge two DataFrames in Pandas?

• merge()

• join()

• concatenate()

• All of the above

What does the Matplotlib library provide?

• Data visualization tools

• Numerical computations

• Machine learning models

• Data scraping methods

What does the seaborn library enhance?

• Advanced statistical visualizations

• DataFrame manipulation

• Sorting arrays

• API requests