1. Fill in the blank: _____ are the words and symbols you use to write instructions for computers.
- Programming languages
- Code languages
- Syntax languages
- Variable languages
Explanation: In order to create instructions for computers, you will need to employ syntax, which consists of words and symbols.
2. Using a programming language can help you with which aspects of data analysis? Select all that apply.
- Transform your data
- Ask the right questions about your data
- Clean your data
- Visualize your data
3. Which of the following are benefits of open-source code? Select all that apply.
- Anyone can create an add-on package for the code
- Anyone can use the code for free
- Anyone can pay a fee for access to the code
- Anyone can fix bugs in the code
4. For what reasons do many data analysts choose to use R? Select all that apply.
- R can create high quality visualizations
- R can quickly process lots of data
- R is a data-centric programming language
- R is a closed source programming language
5. Fill in the blank: A data analyst wants to quickly create visualizations and then share them with a teammate. They can use _____ for the analysis.
- a dashboard
- structured query language
- the R programming language
- a database
Explanation: With the use of applications such as Tableau, Power BI, or even Google Data Studio, a data analyst can easily create visuals in a short amount of time and easily share them with a colleague. The purpose of these tools is to simplify the process of visualization and to make it easier for people to work together. More specifically, they enable users to generate images that are interactive and informative without having to go too far into coding.
6. RStudio’s integrated development environment lets you perform which of the following actions? Select all that apply.
- Install R packages
- Stream online videos
- Import data from spreadsheets
- Create data visualizations
7. Fill in the blank: When you execute code in the source editor, the code automatically also appears in the _____.
- plots tab
- R console
- files tab
- environment pane
Explanation: On the event that you run code inside the source editor, the code will immediately show on the console as well. Additionally, the console enables interactive exploration and debugging, and it shows the result of the code you have written. The R code you are working on is essentially a live feedback channel.
8. In RStudio, where can you find and manage all the data you currently have loaded?
- R console pane
- Plots tab
- Environment pane
- Source editor pane
Explanation: Within RStudio, the Environment Pane is where you will be able to locate and manage all of the data that you have presently loaded. A snapshot of your current workspace, including variables, data frames, and other objects, is shown in this pane, which is normally located in the upper right-hand corner of the RStudio interface. Keeping track of what is happening with your data while you are coding is a convenient method to have information at your fingertips.
9. What type of software application is RStudio?
- Integrated development environment
- Data visualization tool
- Source editor
- Database
Explanation: Based on the R programming language, RStudio is an integrated development environment (IDE) for software development. In R, it offers a user-friendly interface that makes coding, data processing, and visualization using the language easier to do. Components such as a source code editor, a console, and tools for managing packages, visualizations, and workspace are included in the integrated development environment (IDE). It is essentially a one-stop shop for users of R, which significantly improves the efficiency of the process of coding and analysis. RStudio is an excellent companion for those who are beginning to work with R for the purpose of data analysis or statistical programming.
10. RStudio includes which of the following panes? Select all that apply.
- Command pane
- Source editor pane
- R console pane
- Environment pane
11. If you write code directly in the R source editor, RStudio can save your code when you close your current session.
- True
- False
Explanation: You have it just correct! When seen in this light, RStudio is rather thoughtful. When you exit the session, the R source editor will often offer you to save your script if you have entered code right in the editor. The next time you open RStudio, you will be able to start up exactly where you left off thanks to this feature. Utilizing this tool can help you prevent losing all of your hard work.
12. What are Python, JavaScript, SAS, Scala, and Julia?
- Integrated Development environments
- Databases
- Programming Languages
- Web applications