Exam (elaborations) Data Analytics Made for Beginner

5/9/23, 3:34 PM Quiz 2 10% 9.5.2023 3-4PM: Attempt review




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Started on Tuesday, 9 May 2023, 3:30 PM
State Finished
Completed on Tuesday, 9 May 2023, 3:34 PM
Time taken 3 mins 53 secs
Grade 10.00 out of 10.00 (100%)


Question 1 What does the library() function in R do?
Correct

Mark 1.00 out of A. deletes a package or library
1.00
B. creates a new library or package
C. lists all packages or libraries currently loaded in the R session
D. loads a package or library of functions into the R session 



The correct answer is: loads a package or library of functions into the R session




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, 5/9/23, 3:35 PM Quiz 2 10% 9.5.2023 3-4PM: Attempt review

Question 2
Which of the following numerical descriptive measures is most resistant to outliers?
Correct

Mark 1.00 out of A. Mean
1.00
B. Median 
C. Standard deviation
D. Mode



The correct answer is: Median




Question 3 Which of the following charts is best suited for displaying categorical data?
Correct

Mark 1.00 out of A. Box plot
1.00
B. Histogram
C. Scatter plot
D. Bar chart 



The correct answer is: Bar chart




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