Fill in the Blank

Boolean indexing in Pandas DataFrame can be used for ……………

1. Creating a new DataFrame
2. Sorting data based on index labels
3. Joining data using labels
4. Filtering data based on condition

Which Matplotlib plot is best suited to represent changes in data over time?

1. Bar plot
2. Histogram
3. Line plot
4. Histogram & Bar plot

Assertion (A): We can add a new column in an existing DataFrame.

Reason (R): DataFrames are size mutable.

1. Both A and R are true, and R is the correct explanation of A.
2. Both A and R are true, and R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.

Assertion (A): In SQL, INSERT INTO is a Data Definition Language (DDL) Command.

Reason (R): DDL commands are used to create, modify, or remove database structures, such as tables.

1. Both A and R are true, and R is the correct explanation of A.
2. Both A and R are true, and R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.