Two-variable Data — Digital SAT SAT Math revision notes
A 3-page visual revision sheet for Two-variable Data, written for Digital SAT SAT Math. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Two-variable Data sheet covers
- What a scatterplot and its model are
- Reading a straight model
- the model, always in this form
- m, the change in y for one more unit of x
- b, the value the model gives at x=0
- how far one observation sits off the model
- Which way does the cloud lean
- Positive association
- Negative association
- Worked: what m and b mean
- Worked: how far off the model an observation sits
- Linear or exponential, decided from a table
- Association is not cause
- Two growth shapes, side by side
- Pacing, the calculator, and the adaptive second module
- Traps that cost points
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans SAT Math chapter by chapter against your real exam dates and free hours, and when the plan reaches Two-variable Data the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.
More SAT Math revision notes
- Area and Volume
- Circles
- Equivalent Expressions and Polynomials
- Evaluating Statistical Claims
- Inference and Margin of Error
- Linear Equations
- Linear Functions
- Linear Inequalities
- Lines, Angles, Triangles
- Nonlinear Equations in One Variable
- Nonlinear Functions
- Nonlinear Systems
- One-variable Data
- Percentages
- Probability and Conditional Probability
- Ratios, Rates and Proportions
- Systems of Equations
- Triangles and Trigonometry
- Units, Rates and Conversions