GirlsWhoML-W1

How do you load a CSV file in Pandas?

• pd.read_csv('file_path.csv')
• pd.import_csv('file_path.csv')
• pd.load_csv('file_path.csv')
• pd.open_csv('file_path.csv')

What does df.head() do in Pandas?

• df.head() displays the entire DataFrame.
• df.head() returns the last 5 rows of a DataFrame.
• df.head() returns the first 5 rows of a DataFrame.
• df.head() summarizes the DataFrame's statistics.

In which step of ML do we remove missing values and handle outliers?

• Feature selection
• Data visualization
• Model training
• Data preprocessing

How do you filter rows where the 'Age' column is greater than 30?

• df[df['Age'] == 30]
• df[df['Age'] >30]

• df[df['Age'] >= 30]
• df[df['Age'] < 30]

What is the purpose of feature scaling in machine learning?

• To improve the performance of the model

• To increase the size of the dataset

• To reduce the number of features

• To visualize the data better

How can you check for missing values in a DataFrame?

• df.isnull()

• df.check_missing()

• df.hasna()

• df.missing_values()

How do you save a DataFrame to a new CSV file?

• df.to_csv('filename.csv', include_index=True)
• df.write.csv('filename.csv')
• df.to_csv('filename.csv', index=False)
• df.save('filename.csv')

To get summary statistics of a DataFrame, we use the ________function.

How can you drop a column from a DataFrame?

• df.pop()

• df.delete()

• df.drop()

• df.remove()

what does inplace=True do?

• creates a copy of the DataFrame or Series.

• modifies the original DataFrame or Series directly.

• affects the display of the DataFrame or Series.

• used to sort the DataFrame or Series.