Inferences and Quantitative Evidence
This topic covers reasonable inferences, claims supported by data, graphs, tables, and passage-plus-visual evidence.
How to study for the SAT
Build every answer around passage evidence, standard English, rhetorical purpose, equation setup, units, graph labels, and reasonableness checks.
Core concepts
Concept 1
Inferences and Quantitative Evidence questions reward answers that stay inside the passage, data, prompt, or algebraic setup.
Exam cue: Name the skill being tested before reading the choices.
Concept 2
The strongest answer matches the exact task and avoids adding outside assumptions.
Exam cue: Anchor the answer in evidence, context, units, or the requested quantity.
Concept 3
Eliminate choices that are true in general but unsupported by the item.
Exam cue: Check that the answer fits the whole item, not just one familiar phrase.
Risk pitfalls and guardrails
Choosing a plausible answer that is not supported by the given information.
Guardrail: Avoid answers that add outside knowledge, overstate, change sentence meaning, mix units, ignore graph labels, or skip the exact task.
Answering a nearby skill instead of the exact question asked.
Guardrail: Avoid answers that add outside knowledge, overstate, change sentence meaning, mix units, ignore graph labels, or skip the exact task.
Overlooking a qualifier, unit, transition, or graph label.
Guardrail: Avoid answers that add outside knowledge, overstate, change sentence meaning, mix units, ignore graph labels, or skip the exact task.
Memory anchors
Reasonable Inference
A reasonable inference is suggested by the information given and avoids speculation.
Data Claim
A data claim must match the values, direction, and limits shown in the display.
Graph Label
Graph labels identify what each axis, unit, group, or value represents.
Trend
A trend describes a visible pattern in the data, not a prediction beyond it.
Table Comparison
A table comparison should use the correct row, column, and unit.
Numerical Support
Numerical support connects the selected value or relationship to the claim.
Visual Boundary
A visual boundary prevents claims about information the graph does not show.
Combined Evidence
Combined evidence uses both passage wording and visual data.
Approximation
Approximation is acceptable only when the display or answer choices allow it.
No Extrapolation
Do not extend a pattern beyond the data unless the item specifically asks for it.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Researchers placed identical nesting boxes in shaded and unshaded parts of a grassland. Birds occupied 62% of shaded boxes and 39% of unshaded boxes. Temperature sensors showed that shaded boxes were cooler during the hottest hours. Which conclusion is best supported by the text?
A bookstore tracked average daily sales before and after adding a reading area. Category | Before | After Fiction | 18 | 26 History | 11 | 12 Children's | 20 | 31 Travel | 9 | 8 Which statement is supported by the table?
Answer all questions to submit.
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Move forward only after this module is stable.
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