CBSE Class 12 Marking Scheme 2022 for Informatics Practices

Marking Scheme Subject: Informatics Practices Class - XII 1. a. Panel Data 2. d. pip install pandas 3. c. Wes McKinney 4. c. 1 Dimensional 5. c. Library 6. C. Both of the above 7. b colour() 8. a. 1 9. a. loc() 10. a. Savefig() 11. b. Digital Footprint 12. d. Installing antivirus software 13. a. Free 14. b. import pandas as 1pd 15. c Intellectual Property Rights 16. c Patent 17. a. Key Error 18. a. Plagiarism 19. b. head (n) 20. d. Sound Pollution 21. b. No 22. d. IT Act 23. a. dictionary of tuples 24. c. read_csv() 25. a. length 26. c. 3 27. d. stud.size 28. c. S=pd.Series(Monument,index=State) 29. b. Phishing 30. b import matplotlib.pyplot as plt plt.plot([1,2,3],[4,5,1]) plt.show() 31. c. Statement A is correct, but Statement B is incorrect 32. d. histogram 33. a. Ubuntu 34. b Statements 2 and 3 35. c. W Wolf B Bear dtype: object 36. d. go to his parents, teacher, or other trusted adult and let them know that he feels uncomfortable. 37. c. dfRent.loc[0] 38. d. All of the above 39. c. loc() is label based function and iloc() integer position based function.

40. b a NaN v -1.0 w 2.0 x NaN y 2.0 z 8.0 dtype: float64 41. d. All of the above 42. a DF.drop([2,4],axis=0) 43. c B 2 D 4 F 6 dtype: int64 44. a. df=pd.DataFrame({"Name":Name,"Phy":Phy,"Chem":Chem}) 45. b. FOSS 46. b. print(df.shape) 47. b. 50000 48. a. 0 45.0 1 NaN 2 43.5 Name: Marks, dtype: float64 49. c. Statement A is correct, but Statement B is incorrect 50. a. DF['Prem']=[89,78,76] 51. c DF[:]=0 52. b. DF.drop('Science', axis=0) 53. b. DF.append(S1) 54. b. Navee n Rehana John Roja Mannat A 90 92 89 81 94 B 91 81 91 71 95 C 97 96 88 67 99 55. a. 15