10 original Command of Evidence: Quantitative questions, easiest first. Read a table or graph and pick the choice the data actually supports. Answer them all, then submit once to see every answer explained.
A subscription box company tracked the percentage of customers who upgraded to an annual plan, broken down by how many monthly boxes they had received before being offered the upgrade:
| 1–2 boxes | 11% upgraded |
|---|---|
| 3–4 boxes | 28% upgraded |
| 5–6 boxes | 45% upgraded |
| 7+ boxes | 61% upgraded |
Which choice best describes the relationship shown in the table?
B — Upgrade rate generally increases as the number of boxes received before the offer increases.. The upgrade percentages rise steadily (11%→28%→45%→61%) as the number of boxes received increases, showing a clear positive relationship, matching choice B.
A researcher recorded the average number of hours volunteers spent training and their subsequent success rate at completing a wilderness certification exam:
| Under 5 hrs | 31% pass rate |
|---|---|
| 5–10 hrs | 54% pass rate |
| 10–20 hrs | 78% pass rate |
| Over 20 hrs | 85% pass rate |
Which choice best describes the relationship shown in the table?
C — Pass rate generally increases as training hours increase.. The pass rate rises steadily (31%→54%→78%→85%) as training hours increase, showing a clear positive relationship, matching choice C.
A study tracked the number of new lichen species catalogued in a forest region across five-year survey periods, alongside the number of trained field researchers active during each period:
| 2000–2004 | 5 researchers, 9 species |
|---|---|
| 2005–2009 | 9 researchers, 15 species |
| 2010–2014 | 14 researchers, 26 species |
| 2015–2019 | 20 researchers, 35 species |
Which choice best describes the relationship shown in the table?
A — As the number of active field researchers increased, the number of newly catalogued species also increased.. Both researcher counts and catalogued species rise together across all four periods (5→9→14→20 and 9→15→26→35), a clear positive relationship matching choice A.
A researcher measured average alertness-test scores for shift workers who reported different amounts of natural light exposure during their break periods:
| No exposure | 58 points |
|---|---|
| Brief exposure | 67 points |
| Moderate exposure | 79 points |
| Extended exposure | 71 points |
A workplace consultant claims that alertness scores increase continuously the more natural light exposure a worker has during breaks.
Does the data support the consultant's claim?
A — No, because scores rise from no exposure to moderate exposure, but then fall for workers with extended exposure.. Scores rise from 58 to 67 to 79, but then drop to 71 for the extended-exposure group—not a continuous increase. Choice A correctly identifies this non-monotonic pattern, disproving the 'continuously' claim, even though choice B is technically true in isolation.
A researcher recorded the number of active community gardens and the total pounds of produce donated to food banks in a city over four years:
| Year 1 | 12 gardens, 3,100 lbs |
|---|---|
| Year 2 | 18 gardens, 4,600 lbs |
| Year 3 | 15 gardens, 5,200 lbs |
| Year 4 | 24 gardens, 5,900 lbs |
A city official claims that years with more gardens always resulted in more produce donated.
Does the data support the city official's claim?
A — No, because Year 3 had fewer gardens than Year 2 but more produce donated, contradicting a simple always-increasing relationship.. Year 3 had only 15 gardens (fewer than Year 2's 18) yet donated more produce (5,200 vs. 4,600), directly contradicting a claim that more gardens always means more produce. Choice C misstates Year 4's data—it did not have the most produce donated relative to a strictly increasing pattern (though it had the most overall, the claim of 'always' fails at Year 3).
A study tracked the number of new plant species discovered in a rainforest region across five-year survey periods, alongside the number of trained field researchers active during each period:
| 2000–2004 | 12 researchers, 8 species |
|---|---|
| 2005–2009 | 19 researchers, 15 species |
| 2010–2014 | 27 researchers, 24 species |
| 2015–2019 | 33 researchers, 29 species |
Which choice best describes the relationship shown in the table?
A — As the number of active field researchers increased, the number of newly discovered species also increased.. Both researcher counts and discovered species rise together across all four periods (12→19→27→33 and 8→15→24→29), a clear positive relationship matching choice A.
An orchard manager logged the number of aphids per leaf sample across three sections treated with varying amounts of ladybug releases:
| No release | 41 aphids |
|---|---|
| Moderate release | 18 aphids |
| Heavy release | 5 aphids |
An entomologist states that greater numbers of released ladybugs correspond to fewer aphids per leaf.
Do the figures support the entomologist's statement?
B — Yes, since aphid counts fall steadily as ladybug releases increase from none to moderate to heavy.. The counts 41 → 18 → 5 fall steadily as releases go from none to moderate to heavy, matching an inverse relationship that supports the statement; choice D misreads the data in the wrong direction.
A researcher studying loading times collected data on average full-page load time by internet connection type:
| Dial-up | 42.0 sec |
|---|---|
| DSL | 6.5 sec |
| Cable | 2.1 sec |
| Fiber | 0.4 sec |
The researcher claims that, on average, fiber connections load pages faster than any other connection type listed.
Does the table support the researcher's claim?
A — Yes, because fiber has the lowest average load time of the four types listed.. Fiber's average (0.4 sec) is lower than dial-up (42.0), DSL (6.5), and cable (2.1), so it is indeed the fastest type listed, supporting the claim. Choice B misreads the numbers—cable (2.1) is slower than fiber (0.4), not faster.
A researcher recorded the number of newly registered beekeepers and the total colonies reported healthy in a county over four years:
| Year 1 | 30 beekeepers, 210 healthy colonies |
|---|---|
| Year 2 | 42 beekeepers, 265 healthy colonies |
| Year 3 | 37 beekeepers, 290 healthy colonies |
| Year 4 | 55 beekeepers, 310 healthy colonies |
A county extension officer states that years with more registered beekeepers always had more healthy colonies than years with fewer registered beekeepers.
Do the figures support the extension officer's statement?
C — No, since Year 3 had fewer beekeepers than Year 2 yet more healthy colonies, breaking a strict always-increasing pattern.. Year 3 had only 37 beekeepers (fewer than Year 2's 42) yet reported more healthy colonies (290 vs. 265), directly contradicting the claim that more beekeepers 'always' means more healthy colonies, even though choice B correctly describes Year 4 alone.
A fitness app tracked the percentage of users who maintained a workout streak for over 90 days, broken down by how many friends they had connected within the app:
| 0 friends | 6% maintained |
|---|---|
| 1–3 friends | 19% maintained |
| 4–7 friends | 34% maintained |
| 8+ friends | 52% maintained |
Which choice best describes the relationship shown in the table?
B — The percentage maintaining a long streak generally increases as the number of connected friends increases.. The percentages rise steadily (6%→19%→34%→52%) as connected friends increase, showing a clear positive relationship, matching choice B.
Score:
Every question above is now marked up: the correct answer is highlighted, any wrong option you picked is flagged, and each explanation is open.
No. Every question here is original, written to the College Board's published Digital SAT Reading & Writing specification for the Command of Evidence: Quantitative skill. No retired or copyrighted College Board material appears anywhere on this site.
Command of Evidence (Quantitative) pairs a short passage with a table or graph and asks which choice most effectively uses that data to complete or support a stated claim. No arithmetic beyond comparison is required — it is a reading question about a data display, not a maths question.
Read the title, the axis labels, the units and the column headers before you read a single answer choice; most wrong answers survive only because the reader assumed what the numbers measured. Then find the specific comparison the claim needs, locate exactly those cells or points, and check each choice against them.
No, and deliberately so. This drill is 10 Command of Evidence: Quantitative questions back to back; a real Reading & Writing module is 27 questions in 32 minutes drawn from all eleven skills. Use a drill to fix one weakness, then take a full module to practice the real thing.
No. The SAT has no penalty for a wrong answer — a blank and a wrong guess both score zero — so answer every question, including the ones you have to guess.