Answer the following questions specific knowledge and theories DATA MINING

APA FORMAT, PLAGIARISM, GRAMMARLY, REFERENCEALL
ALL THE ANSWER SHOULD BE HAVE 5 PIONTS OF DISCRIBTION
FOLLOW THE FIRST PPT FOR QUESTION 8, 9, 10
FOLLOW THE SECOND PPT PAGE 65 TO 70 FOR SCOND ASSIGMENT QUESTION
answer the following questions.
8. Define what is the data preprocessing and explain four steps.
9. In real-world data, tuples with missing values for some attributes are a common occurrence. Describe various methods for handling this problem.
10. Briefly outline the normalization methods and show an example.
11 FOLLOW THE SECOND PPT PAGE 65 TO 70 FOR SCOND ASSIGMENT QUESTION