Machine Learning A-Z™: Hands-On Python & R In Data
  • Introduction
  • Introduction
    • Introduction
  • Section 1: Welcome to the course!
    • 1. Applications of Machine Learning
    • 2. Why Machine Learning is the Future
    • 3. Important notes, tips & tricks for this course
    • 4. Installing Python and Anaconda (Mac, Linux & Windows)
    • 5. Update: Recommended Anaconda Version
    • 6. Installing R and R Studio (Mac, Linux & Windows)
    • 7. BONUS: Meet your instructors
  • Section 2: Part 1 Data Preprocessing
    • 8. Welcome to Part 1 - Data Preprocessing
    • 9. Get the dataset
    • 10. Importing the Libraries
    • 11. Importing the Dataset
    • 12. For Python learners, summary of Object-oriented programming: classes & objects
    • 13. Missing Data
    • 14. Categorical Data
    • 15. WARNING - Update
    • 16. Splitting the Dataset into the Training set and Test set
    • 17. Feature Scaling
    • 18. And here is our Data Preprocessing Template!
    • Quiz 1: Data Preprocessing
  • Section 3: Part 2 Regression
    • 19. Welcome to Part 2 - Regression
  • Section 4: Simple Linear Regression
    • 20. How to get the dataset
    • 21. Dataset + Business Problem Description
    • 22. Simple Linear Regression Intuition - Step 1
    • 23. Simple Linear Regression Intuition - Step 2
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  • QUIZ 1
  • Question 1
  • Question 2
  • Question 3
  • Question 4
  • Question 5
  1. Section 2: Part 1 Data Preprocessing

Quiz 1: Data Preprocessing

QUIZ 1

Question 1

  • In Python, which of the following library can best help manage datasets ?

  • Answer: pandas

Question 2

  • What is the correct way of importing a dataset in R ?

  • Answer: dataset = read.csv('Data.csv')

Question 3

  • Which of the following is not a recommended strategy to take care of missing data ?

  • Answer: Delete the observation that contains the missing data

Question 4

  • Do we need to apply OneHotEncoder to encode an independent variable that gives the size S, M or L of a t-shirt ?

  • Answer: No

Question 5

  • What is the worst choice of split ratio Training set : Test set ?

  • Answer: 50 : 50

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Last updated 6 years ago