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1. When dealing with missing data in a dataset, what is a common approach for handling it?

2. Which of the following is NOT a commonly used tool for data acquisition and pre-processing?

3. What is the process of combining data from multiple sources into a single, coherent view called?

4. Which of the following is an example of structured data in the context of data acquisition?

5. Which of the following Python libraries is commonly used for data pre-processing tasks such as cleaning and transforming data?

6. What is the first step in the data acquisition process?

7. What is the output of the following Python code snippet? ```python print(5 / 2) ```

8. In Python, what is the result of 2**3?

9. What statement is used to exit a loop prematurely in Python?

10. Which of the following Python libraries is commonly used for data manipulation and analysis?

11. What does the following Python code snippet do? ```python numbers = [1, 2, 3, 4, 5] squared = [x**2 for x in numbers] print(squared) ```

12. Which of the following is true about Python's function arguments?

13. What is the result of the following Python code? ```python a = 10 b = 5 result = a % b print(result) ```

14. What statistical analysis technique is used to determine the relationship between two continuous variables?

15. Which statistical test is appropriate for comparing means between two independent groups?

16. What is the purpose of a confidence interval in statistical analysis?

17. Which measure of central tendency is influenced by outliers in a dataset?

18. In statistical analysis, what does the term "p-value" represent?

19. Which statistical test is used to determine whether there is a significant difference between the means of two or more independent groups?

20. What does the coefficient of determination (R-squared) measure in statistical analysis?

21. What statistical test is used to compare means between more than two groups or conditions?

22. What is the purpose of data analysis in the context of data modeling?

23. In the context of data modeling, what is overfitting?

24. Which of the following is a common approach for data modeling?

25. What is the goal of feature selection in data modeling?

26. Which technique is used to evaluate the performance of a data model?

27. What is the purpose of cross-validation in data modeling?

28. What is the difference between regression and classification in data modeling?

29. Which machine learning algorithm is commonly used for clustering in data modeling?

30. Which of the following libraries in Python is commonly used for creating interactive visualizations?

31. What type of plot is best used for showing the relationship between two continuous variables?

32. Which of the following is a popular tool for creating dynamic and interactive data visualizations?

33. In data visualization, what does the term "data storytelling" refer to?

34. Which of the following type of chart is commonly used to visualize hierarchical data structures?

35. What is the primary purpose of data visualization in the field of data analytics?

36. Which of the following is a key advantage of using dashboards in data visualization?

37. Which of the following color schemes is recommended for data visualization to ensure accurate interpretation of data?

38. What is the purpose of data acquisition in the context of data analytics?

39. Which of the following is NOT a common method for data acquisition?

40. In data pre-processing, what is the purpose of data cleaning?

41. Which of the following is an example of data transformation in pre-processing?

42. What is the purpose of data integration in the data acquisition process?

43. Which of the following is a typical challenge faced during data acquisition?

44. What is the significance of data profiling in data pre-processing?

45. Which of the following techniques can be used for outlier detection in data pre-processing?

46. Which of the following is NOT a valid data type in Python?

47. What does the 'range()' function in Python do?

48. In Python, how would you access the value '42' in a dictionary that has the key 'answer'?

49. What does the 'split()' method do when called on a string in Python?

50. How do you comment out a single line of code in Python?