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7.1.2.Weekly challenge 1
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A data analyst uses words and symbols to give instructions to a computer. What are the words and symbols known as?
Function language- Programming language
Syntax languageCoded language
Correct. Programming languages are the words and symbols you use to write instructions for computers to follow.
Many data analysts prefer to use a programming language for which of the following reasons? Select all that apply.
- To easily reproduce and share an analysis
- To save time
To choose a topic for analysis- To clarify the steps of an analysis
Correct. Many data analysts prefer to use a programming language in order to easily reproduce and share an analysis, save time, and clarify the steps of an analysis.
What is the term for programming code that is freely available and may be modified and shared by the people who use it?
- Open-source
Data-centricOpen-dataOpen-ended
Correct. Open-source code is freely available and may be modified and shared by the people who use it.
Which of the following are benefits of using R for data analysis? Select all that apply.
- Reproduce and share an analysis
- Process lots of data
Define a problem and ask the right questions- Create high-quality data visualizations
Correct. The benefits of using R for data analysis include the ability to process lots of data, create high quality data visualizations, and reproduce and share an analysis.
A data analyst needs to quickly create a series of scatterplots to visualize a very large dataset. What should they use for the analysis?
- R programming language
A slide presentationA dashboardStructured query language
Correct. The analyst should use the R programming language to quickly create a series of scatterplots to visualize a very large dataset. R can quickly process lots of data and create high quality visualizations.
RStudio’s integrated development environment lets you perform which of the following actions? Select all that apply.
- Install R packages
- Create data visualizations
- Import data from spreadsheets
Stream online videos
Correct. RStudio’s integrated development environment lets you install R packages, import data from spreadsheets, and create data visualizations.
A data analyst writes the code summary(penguins) in order to show a summary of the penguins dataset. Where in RStudio can the analyst execute the code? Select all that apply.
- Source editor pane
Files tabEnvironment pane- R console pane
Correct. In RStudio, the analyst can execute the code in both the R console pane and the source editor pane.
Fill in the blank: In RStudio, the _____ is where you can find all the data you currently have loaded, and can easily organize and save it.
source editor pane- environment pane
R console paneplots pane
Correct. In RStudio, the environment pane is where you can find all the data you currently have loaded, and can easily organize and save it.
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