Mastery Check – Getting Started with R and Rstudio
Find a video explanation and further instructions “Quiz Materials” section.
For each question, you can copy and paste the relevant code into R. This could take anywhere from 10 minutes to an hour depending on your skill level with R. Take it at your own pace and feel free to use all the resources you wish. A video explanation can be found after the Mastery check completion (pass or fail)
Quiz Summary
0 of 9 Questions completed
Questions:
Information
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading…
You must sign in or sign up to start the quiz.
You must first complete the following:
Results
Results
0 of 9 Questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)
Categories
- Not categorized 0%
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- Current
- Review
- Answered
- Correct
- Incorrect
-
Question 1 of 9
1. Question
Assuming you have created a new R script in Rstudio, which pane is it currently residing in?
CorrectIncorrect -
Question 2 of 9
2. Question
If you run the following code, which pane does the output appear within Rstudio?
2+2CorrectIncorrect -
Question 3 of 9
3. Question
If you run the following code to create an object named X, which pane does the object appear within Rstudio?
x <- "frog"CorrectIncorrect -
Question 4 of 9
4. Question
You wish to load in a dataset by setting the working directory. Your data is in the folder “bird_nerd_data” on your desktop. Which of the following setwd() functions will correctly set your working directory? Select all that apply
CorrectIncorrect -
Question 5 of 9
5. Question
When the following plot function is run, which pane in Rstudio can we see the plot?
age <- c(1,2,5,4,5,4,2,3,7,6) size_cm <- c(1.5,2.6,1,1,5,6,2.7,4,9.8,10) plot(x = age, y = size_cm)CorrectIncorrect -
Question 6 of 9
6. Question
What are packages and how do we use them in Rstudio?
CorrectIncorrect -
Question 7 of 9
7. Question
What is a function?
CorrectIncorrect -
Question 8 of 9
8. Question
Looking at the following chunk of code that manipulates the value of x step by step. What would the final output of x be if this code is run from start to finish without any edits?
x <- 5 x <- x+2 # x <- x*2 x <- x-4 #x <- x+6CorrectIncorrect -
Question 9 of 9
9. Question
Looking at the following chunk of code that manipulates the value of x step by step. What would the final output of x be if we removed the # symbol from the third and fifth line?
x <- 5 x <- x+2 #x <- x*2 x <- x-4 #x <- x+6CorrectIncorrect
