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Learn Grades Summary | Factors
R Introduction: Part I

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Grades Summary

Task

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You have already created a factor vector, grades_f, which assigns each numeric grade into one of five categories ('F', 'D', 'C', 'B', 'A'). Your goal is to:

  1. Call the summary() function on your grades_f variable to output the number of occurrences of each factor grade.
  2. Divide those counts by the total number of grades, computed by calling length() function on grades_f variable, to obtain the relative frequency of each grade.

Solution

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SectionΒ 3. ChapterΒ 6
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book
Grades Summary

Task

Swipe to start coding

You have already created a factor vector, grades_f, which assigns each numeric grade into one of five categories ('F', 'D', 'C', 'B', 'A'). Your goal is to:

  1. Call the summary() function on your grades_f variable to output the number of occurrences of each factor grade.
  2. Divide those counts by the total number of grades, computed by calling length() function on grades_f variable, to obtain the relative frequency of each grade.

Solution

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

close

Awesome!

Completion rate improved to 3.85

Swipe to show menu

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