Key Concepts

• Circle graphs or pie charts: represent data as sections of the circle corresponding to their percentage of the whole
• Bar graph: the height of each bar corresponds to the percent, or relative frequency, of data values observed in each category
• Two-way table: counts are displayed by rows corresponding to categories for one attribute and by columns corresponding to categories for the other attribute
• Percent Equation
  • [latex]\mathrm{Percent} \ \cdot \ \mathrm{Base} \ = \ \mathrm{Amount}[/latex]