SAT Math · Study & Practice
Data Interpretation
Reading data from tables and graphs is one of the most common SAT Problem-Solving and Data Analysis skills. This chapter covers tables, bar graphs, pie charts, histograms, line graphs and scatterplots. Read each topic, work the problems with the hint ladder, then take the 8-question topic test.
Topics
1
Tables
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2
Bar Graphs
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3
Pie Charts
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4
Histograms
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5
Line Graphs
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6
Scatterplots
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Chapter test
Formula Reference Sheet
This chapter
Reading data
| Total | add every value in the set |
|---|---|
| Difference | larger value − smaller value |
| Average | sum of values ÷ number of values |
Charts
| Pie slice count | percent ÷ 100 × total |
|---|---|
| Pie central angle | percent ÷ 100 × 360° |
| Frequency total | add all the bar/bin heights |
Digital SAT reference
Area & Circumference
| Circle area | A = πr² |
|---|---|
| Circle circumference | C = 2πr |
| Rectangle | A = ℓw |
| Triangle | A = ½ b h |
Volume
| Rectangular box | V = ℓwh |
|---|---|
| Cylinder | V = πr²h |
| Sphere | V = 4⁄3 πr³ |
| Cone | V = 1⁄3 πr²h |
| Pyramid | V = 1⁄3 ℓwh |
Right triangles
| Pythagorean theorem | a² + b² = c² |
|---|---|
| 30°–60°–90° | sides x : x√3 : 2x |
| 45°–45°–90° | sides s : s : s√2 |
Constants
| Degrees in a circle | 360° |
|---|---|
| Radians in a circle | 2π |
| Angles of a triangle | sum = 180° |
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