R Programming Quiz
10 questions · no time limit
0:00
R-SPECIFIC TOPICS (DATA WORKFLOWS)
Question 1 of 10
No time limit
Current
Answered
Flagged
Not seen
What bar sequence is produced by barplot(table(factor(c("open", "closed", "open"), levels = c("pending", "open", "closed"))))?
YOUR PROGRESS
10
QUESTIONS
Ready when you are
Answer in any order. Your progress shows here as you go.
QUESTIONS
KEYBOARD
Pick an answer ABCD
Next question ↵→
Previous ←
Flag for review F