Unit1_Pandas&Visualization

Which of the following is the correct way to create a Pandas DataFrame from a CSV file?

• df = pd.DataFrame.from_csv('data.csv')

• df = pd.read_csv('data.csv')

• df = pd.DataFrame.read_csv('data.csv')

• df = pd.DataFrame.load_csv('data.csv')

Which method is used to access a specific column in a Pandas DataFrame?

• df.loc[]

• df.iloc[]

• df.column_name

• All of the above

How can you check the number of rows and columns in a DataFrame?

• df.size()

• df.shape

• df.length()

• df.info()

What is the difference between a Pandas DataFrame and Series?

• A DataFrame is a 2-dimensional data structure, while a Series is 1-dimensional.

• A DataFrame can store heterogeneous data types, while a Series can only store homogeneous data types.

• A DataFrame has both row and column labels, while a Series only has row labels.

• All of the above.

Which method is used to calculate the sum of values in a Pandas Series?

• series.sum()

• series.total()

• series.add()

• series.aggregate('sum')

Which library is commonly used for data visualization in Python?

• NumPy

• Matplotlib

• Pandas

• Scikit-learn

How can you create a line plot using Matplotlib?

• plt.scatter()

• plt.bar()

• plt.plot()

• plt.hist()

What does the parameter 'kind' represent in the Pandas DataFrame plot() method?

• It specifies the color palette for the plot.

• It determines the type of plot to be generated (e.g., line, bar, scatter).

• It controls the size of the plot.

• It sets the title of the plot.

How can you add a legend to a Matplotlib plot?

• plt.add_legend()

• plt.legend()

• plt.show_legend()

• plt.set_legend()

Which method is used to save a Matplotlib plot as an image file?

• plt.save_image()

• plt.save_plot()

• plt.savefig()

• plt.export_image()