7.1.2.Weekly challenge 1

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 language
• Coded 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-centric
• Open-data
• Open-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 presentation
• A dashboard
• Structured 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 tab
• Environment 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 pane
• plots 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.