MCQs R Language

Online Multiple Choice Questions about R Programming Language

1. A data analyst needs to quickly create a series of scatterplots to visualize a very large dataset. What should they use for the analysis?

 
 
 
 

2. Which of the following are the benefits of open-source code? Select all that apply.

 
 
 
 

3. A data analyst is searching for an open-source tool that will allow them to reproduce every step of their analysis, including data cleaning and transformations, calculations, and visualizations. What tool is the best option?

 
 
 
 

4. Why do analysts use comments In R programming? Select all that apply.

 
 
 
 

5. A data analyst wants to use a programming language that they can modify. What type of programming language should they use?

 
 
 
 

6. A data analyst is searching for a tool that will allow them to communicate instructions that a computer can run. What tool should they use?

 
 
 
 

7. What tool gives data analysts the highest level of control over their data analysis?

 
 
 
 

8. RStudio includes which of the following panes? Select all that apply.

 
 
 
 

9. What are the benefits of using a programming language for data analysis? Select all that apply.

 
 
 
 

10. If you write code directly in the R source editor, RStudio can save your code when you close your current session.

 
 

11. When using RStudio, what does the installed.packages()function do?

 
 
 
 

12. A data analyst is working with spreadsheet data. The analyst imports the data from the spreadsheet into RStudio. Where in RStudio can the analyst find the imported data?

 
 
 
 

13. What type of software application is RStudio?

 
 
 
 

14. What are the benefits of using a programming language to work with your data? Select all that apply.

 
 
 
 

15. An analyst includes the following calculation in their R programming: midyear_sales <- (quarter_1_sales + quarter_2_sales) - overhead_costsWhich variable will the total from this calculation be assigned to?

 
 
 
 

16. Many data analysts prefer to use a programming language for which of the following reasons? Select all that apply.

 
 
 
 

17. In data analytics, what is CRAN?

 
 
 
 

18. Programming involves _____ a computer to perform an action or set of actions.

 
 
 
 

19. A data analyst wants to write R code that they can access again after they close their current session in RStudio. Where should they write their code?

 
 
 
 

20. The R programming language can be used for which of the following tasks? Select all that apply.

 
 
 
 

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