Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take mock test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What function would you use to check for missing values in a DataFrame?
💡 Hint: Think of which method allows you to see null values.
Question 2
Easy
How would you remove duplicates from a DataFrame?
💡 Hint: Look for a method that deals with duplication.
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 primary purpose of data cleaning?
- To enhance data visualization
- To ensure data accuracy
- To increase data size
💡 Hint: Think about why we start any analysis.
Question 2
True or False: Dropping rows with missing data is always the best solution.
- True
- False
💡 Hint: Consider the balance between data loss and integrity.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You are given a dataset with missing values, duplicates, and outliers. Describe a stepwise approach you would take to preprocess the data for analysis.
💡 Hint: Think through each preprocessing step logically and sequentially.
Question 2
A dataset shows high variance in income values that negatively impact a predictive model's performance. Propose a solution for this issue.
💡 Hint: Consider techniques that adjust data distributions.
Challenge and get performance evaluation