The Data Scientists Toolbox Coursera Quiz Answer[Updated Answers‼️] -2022

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The Data Scientists Toolbox Coursera Quiz Answer
Week- 1
Module One Summative Quiz
Question 1
Which of these is NOT one of the main skills embodied by data scientists?
1 point
- Artificial intelligence
- Hacking skills
- Substantive expertise
Question 2
What is the most important thing in Data Science?
1 point
- The question you are trying to answer
- Statistical inference
- Working with large data sets
Question 3
Which of these might be a good title for a forum post?
1 point
- URGENT! R isn’t working!
- Removing rows with NAs in data.frame using subset(), R 3.4.3
- How do I get rnorm() to work?
Question 4
What’s the first step in the data science process?
1 point
- Communicate your findings
- Exploring the data
- Generating the question
Question 5
Which of these is an example of a quantitative variable?
1 point
- Latitude
- Occupation
- Educational level
Week- 2
Module Two Summative Quiz
Question 1
What does base R focus on?
1 point
- Mapping
- Statistical analysis
- Artificial intelligence
Question 2
What is RStudio?
1 point
- A graphical user interface for R
- Version control software
- A programming language
Question 3
What is the name of the quadrant in the bottom left corner of RStudio, in the default layout?
1 point
- History
- Plots
- Console
Question 4
What command lists your R version, operating system, and loaded packages?
1 point
- versions()
- Sessioninfo()
- sessionInfo()
Question 5
What file extension do Projects in R use?
1 point
- .Rproj
- .R
- .RPROJECT
Week- 3
Module Three Summative Quiz
Question 1
What is a good example of a message to accompany a commit?
1 point
- Modified linear model of height to include new covariate, genotype
- Fixed problem with linear model
- Updated thing
Question 2
On each repository page in GitHub, in the top right-hand corner, there are three options. They are:
1 point
- Watch, star, fork
- Pull, clone, fork
- Commit, contributors, issues
Question 3
Which of the following will initiate a git repository locally?
1 point
- git init
- git remote add
- git boom
Question 4
What is the order of commands to send a file to GitHub from within RStudio?
1 point
- Commit > Push
- Stage > Commit message > Commit > Push
- Pull > Push > Commit
Question 5
How do you add all of the contents of a directory to version control?
1 point
- git add .
- cd ~/dir/name/of/path/to/file
- git commit -m “Message”
Week- 4
Module Four Summative Quiz
Question 1
What is the format for including a link that appears as blue text in your markdown document?
1 point
- [text that is shown](link.com)
- (link.com)[text that is shown]
- (text that is shown)[link.com]
Question 2
Which of the following describes a predictive analysis?
1 point
- Using data collected in the past to predict values in the future
- Finding if one variable is related to another one
- Showing the effect on a variable of changing the values of another variable
Question 3
We collect data on all the songs in the Spotify catalog and want to
summarize how many are country-western, hip-hop, classic rock, or other.
What type of analysis is this?
1 point
- Exploratory
- Descriptive
- Predictive
Question 4
What might a confounder be in an experiment looking at the relationship
between the prevalence of white hair in a population and wrinkles?
1 point
- Age
- Socioeconomic status
- Sex
Question 5
Which one of the following is an example of structured data?
1 point
- The text from a series of books
- Lung x-ray images
- A table of names and student grades
Peer-graded Assignment: Assemble your toolbox
![The Data Scientists Toolbox Coursera Exam Answer [Updated Answers‼️] 2021 2 1](https://i.ibb.co/mSMpvrw/1.png)
PROMPT
Set up a Github account (you may use your own name or a pseudonym).
Create a repo called datasciencecoursera
Copy and paste the link to your GitHub account (or a direct link to your datasciencecoursera repo)
PROMPT
Create a text file called HelloWorld.md
Add the line “## This is a markdown file” (without the quotation marks) to the document
Push the document to the data science Coursera repo you created on Github
Submit the link to the HelloWorld.md file on your Github repo.
https://github.com/CP-Tadeo/datasciencesoursera
PROMPT
Fork the data sharing repository here:
Copy and paste the link to the forked repository on your Github account.
https://github.com/jtleek/datasharing