Page 306 - Data Science class 11
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Q. 13. What is meant by positive and negative correlation?
Q. 14. What is a boxplot? Explain.
Q. 15. What is a matrix? How is it different from a vector? Explain
Q. 16. What is a survey? What type of questions are normally asked in a survey? Explain.
Answer any 3 out of the given 5 questions in 50 – 80 words each. (4 × 3 = 12 marks)
Q. 17. Why do Data Scientists need to understand ethics? Explain.
Q. 18. Why should we go for observational study when there is Trial Assessment? Explain.
Q. 19. Explain the operators of R language with the help of one example each.
Q. 20. What is ggplot2? Explain. How to create a scatter plot using this package?
Q. 21. Represent the following data table using XML.
Name University Course
Rohan MIT Computing Mathematics
Priya IIT Data Science
Sharmila IIM Finance
Ashwini Carnegie University Biotechnology
Lalith UCLA Machine Learning
304 Touchpad Data Science-XI

