Objective 1QR-MAT-DAI-01
Read data before summarizing
Identify variables, groups, units, totals, trends, and anomalies in tables or displays before selecting a numerical summary.
- Must know
- A total, percentage, rate, and percentage-point difference answer different questions. The display’s population and denominator define what can be concluded.
- Evidence limit
- Describe association or displayed change without converting it into an unsupported causal claim.
- Common trap
A larger percentage always represents a larger count. Counts depend on both the percentage and the group size.- Representations
- table · data display · graph
Objective 2QR-MAT-DAI-02
Test information sufficiency
Decide whether each supplied statement, alone or together, determines the requested quantity without solving beyond what the decision requires.
- Must know
- Sufficiency asks whether a unique answer follows, not whether one compatible answer can be found. Each statement must be tested independently before testing their combination.
- Evidence limit
- Do not import unstated positivity, integrality, geometry, or domain assumptions.
- Common trap
A statement is sufficient if it lets me construct one answer. It must exclude every alternative answer allowed by the prompt.- Representations
- text · equation · table