Practice Summary - 4.11 | Chapter 4: Understanding Pandas for Machine Learning | Machine Learning Basics
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What command do you use to check the first five rows of a DataFrame?

πŸ’‘ Hint: Think about how to preview data.

Question 2

Easy

How can you check how many null values exist in a DataFrame?

πŸ’‘ Hint: Look for functions that deal with null values.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the purpose of the pd.read_csv() function?

  • To write data to a CSV file
  • To read data from a CSV file
  • To create a DataFrame

πŸ’‘ Hint: Recall how data input operations work in Pandas.

Question 2

True or False: A DataFrame can only contain data of a single type.

  • True
  • False

πŸ’‘ Hint: Consider the structure of a DataFrame.

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Challenge Problems

Push your limits with challenges.

Question 1

You have a DataFrame with student scores, some of which are missing. Describe how you would systematically approach cleaning this dataset.

πŸ’‘ Hint: Think about how filling or dropping impacts your dataset.

Question 2

Data contains both categorical and numerical columns. How would you summarize categorical data to get insightful values?

πŸ’‘ Hint: Consider how grouping and counting can show you valuable trends.

Challenge and get performance evaluation