7.1.2.Weekly challenge 1 - sj50179/Google-Data-Analytics-Professional-Certificate GitHub Wiki
Weekly challenge 1
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Question 1
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.
Question 2
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.
Question 3
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.
Question 4
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.
Question 5
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.
Question 6
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.
Question 7
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.
Question 8
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.