Explanation 1
Use clear titles, labels, and units.
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Lesson 13 of 15
Use simple tables, cross-tabulations, rounding, and pivot-style summaries when exact values matter.
Theory
Use simple tables, cross-tabulations, rounding, and pivot-style summaries when exact values matter. This lesson treats charts as analytical tools. Students focus on the data question, variable type, source, scale, and audience before choosing or interpreting a display.
Explanation 1
Use clear titles, labels, and units.
Explanation 2
Keep source and scale choices visible.
Explanation 3
Interpret patterns cautiously and avoid decorative chart junk.
Interactive Mission
| Region | Course | Lab |
|---|---|---|
| North | 4200 | 2600 |
| South | 3900 | 3100 |
R connection
Run and edit the R code. Use the floating guide for line-by-line explanations and common beginner mistakes.
Live R Lab
Use aggregate(), table(), xtabs(), and tapply() for compact summary tables.
Ready to run
Worked example
Scenario
A business education platform asks: use simple tables, cross-tabulations, rounding, and pivot-style summaries when exact values matter.
The chart is useful only when it answers the decision question.
Reflection
Name the data question, the display, and one limitation.
Assistant
Coach me on Tables and Pivot Tables without giving direct quiz answers. Ask me to justify chart choice, scale, and interpretation.
Exit check
Try the hint button before submitting. Explanations appear after your answer is checked.
Checkpoint
Question 1 of 2. Answered 0/2. Passing score: 70%.