Problem-Solving & Data Analysis

≈15% of Math across seven skill points — the widest domain on the test, and the one where the reading costs more marks than the arithmetic.

In this module

Ratios, rates, proportions and unitsUnit conversion is the dominant error source here. Dimensional analysis makes it mechanical.PercentagesPercent change, successive change, and why a 20% rise then a 20% fall is not where you started.One-variable data: distributions, centre and spreadMean against median, what an outlier does to each, and standard deviation without computing it.Two-variable data: models and scatterplotsLine of best fit, slope in context, and the difference between interpolating and inventing.Probability and conditional probabilityTwo-way tables, where the whole skill is choosing the right denominator.Inference from sample statistics and margin of errorSAT-only content. What a margin of error does and, more importantly, does not mean.Evaluating statistical claimsSAT-only. Random sampling licenses generalising; random assignment licenses causation. Never both.Problem-Solving & Data Analysis — module quizInterleaved across all seven skills.