Page 322 - Touhpad Ai

15. Name an AI voice assistant.
Ans: Siri or Google Assistant.
16. What is Deep Learning?

Ans: AI using multiple layers of neural networks.
17. How does AI help in search engines?
Ans: By ranking and personalizing search results.
18. One use of NLP in daily life?

Ans: Spell check or Google Translate.
19. What is training data?
Ans: Dataset used to teach AI models.
20. Which factor decides search relevance?
Ans: Match between query and webpage.

21. What is a matrix?
Ans: A rectangular arrangement of numbers in rows and columns.
22. When can two matrices be added?
Ans: When they have the same order (rows and columns).

23. What is a vector?
Ans: An ordered list of numbers representing magnitude and direction.
24. Define intersection of two sets.
Ans: It includes only common elements of both sets.

25. What does standard deviation measure?
Ans: The spread or variation of data values.
26. What is the null vector?
Ans: A vector whose all elements are zero.

27. What is the transpose of a matrix?
Ans: It is obtained by interchanging rows and columns.
28. Why are vectors important in ML?
Ans: They represent data numerically for computation.
29. What is mean in statistics?

Ans: The sum of all values divided by number of observations.
30. Name one AI application using matrices.
Ans: Image processing or neural networks.
31. What is data visualization?

Ans: Presenting data in a visual form for easy understanding.
32. Name two tools for visualization.
Ans: Excel and Python (Matplotlib/Seaborn).
33. Which chart shows proportions?
Ans: Pie Chart.

34. What is a histogram used for?
Ans: Showing frequency distribution of data.

320 Touchpad Artificial Intelligence - XI