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 retailer tracked customer complaints before and after redesigning its return policy webpage:
| Month 1 (before change) | 310 complaints |
|---|---|
| Month 2 (before change) | 298 complaints |
| Month 3 (after change) | 145 complaints |
| Month 4 (after change) | 132 complaints |
A customer service manager claims the redesigned webpage caused a decrease in complaints.
Does the data support the manager's claim?
B — Yes, because complaints were notably lower in the two months after the change than in the two months before it.. Complaints fell from roughly 298–310 to roughly 132–145 after the change, a clear and notable decrease consistent with the claim. The data covers four months, so choice D is factually wrong, and choice C misreads the direction of change.
A survey measured how many minutes per day respondents spent reading print newspapers, grouped by age:
| 18–29 | 3 min |
|---|---|
| 30–49 | 9 min |
| 50–64 | 21 min |
| 65+ | 14 min |
A columnist claims that time spent reading print newspapers rises without exception as age increases.
Do the figures support the columnist's claim?
C — No, since the figure drops from the 50–64 group to the 65+ group, breaking the upward pattern.. The values 3→9→21 rise, but then fall to 14 for the 65+ group, breaking a strictly increasing pattern—this contradicts 'without exception,' matching choice C; choice A misidentifies which group reads longest.
A researcher recorded the number of active volunteer groups and the total acres of parkland restored in a city over four years:
| Year 1 | 14 groups, 22 acres |
|---|---|
| Year 2 | 21 groups, 30 acres |
| Year 3 | 19 groups, 41 acres |
| Year 4 | 27 groups, 35 acres |
A parks official claims that years with more volunteer groups always resulted in more acres restored.
Does the data support the parks official's claim?
B — No, because Year 3 had fewer groups than Year 2 but more acres restored, contradicting a simple always-increasing relationship.. Year 3 had only 19 groups (fewer than Year 2's 21) yet restored more acres (41 vs. 30), directly contradicting a claim that more groups always means more acres restored. Choice D misstates Year 4's data—it did not have the most acres restored.
A researcher measured average test scores for students who reported different amounts of nightly sleep during exam week:
| Under 5 hrs | 68 points |
|---|---|
| 5–6 hrs | 74 points |
| 7–8 hrs | 85 points |
| Over 9 hrs | 79 points |
A tutor claims that test scores increase continuously the more a student sleeps.
Does the data support the tutor's claim?
B — No, because scores rise from under 5 hours up to 7–8 hours, but then fall for students who slept over 9 hours.. Scores rise from 68 to 74 to 85, but then drop to 79 for the over-9-hours group—not a continuous increase. Choice B correctly identifies this non-monotonic pattern, disproving the 'continuously' claim even though C is technically true in isolation, it doesn't address the claim of continuous increase.
A survey asked residents of four towns how many minutes, on average, they spend walking for errands per week, and cross-referenced this with the number of sidewalk-connected businesses within a half mile of the town center:
| Town A | 4 connected businesses, 32 min/week |
|---|---|
| Town B | 11 connected businesses, 58 min/week |
| Town C | 19 connected businesses, 95 min/week |
| Town D | 27 connected businesses, 140 min/week |
Which choice best describes the relationship shown in the data?
A — As the number of sidewalk-connected businesses increases, average weekly walking time also increases.. Walking minutes rise steadily (32→58→95→140) as connected businesses rise (4→11→19→27), a clear positive relationship, matching choice A exactly.
A study tracked the percentage of survey respondents who reported feeling confident using new software, broken down by whether they had received hands-on training:
| No training, under 40 | 24% |
|---|---|
| No training, 40+ | 19% |
| Training, under 40 | 61% |
| Training, 40+ | 58% |
Which choice best describes the relationship shown in the table?
D — Respondents who received hands-on training reported substantially higher confidence than those who had not, regardless of age group.. Within each age group, trained respondents report much higher confidence (61% vs. 24% under 40; 58% vs. 19% for 40+), showing the training effect holds across both age groups, matching choice D.
A city compared the number of graffiti removal requests per month before and after installing additional street lighting:
| 3 months before installation | 64, 58, 71 requests |
|---|---|
| 3 months after installation | 21, 18, 24 requests |
A city official claims that additional street lighting roughly quartered the monthly graffiti request rate.
Does the data support the official's claim?
D — Yes, because the average monthly requests after installation (about 21) is roughly a quarter of the average before installation (about 64).. The average before (64+58+71)/3 ≈ 64 and after (21+18+24)/3 ≈ 21, which is roughly one quarter of the earlier value—supporting the official's claim as a reasonable approximation.
A researcher recorded the number of wildfires and the total acres burned in a region over four years:
| Year 1 | 120 fires, 45,000 acres |
|---|---|
| Year 2 | 95 fires, 61,000 acres |
| Year 3 | 140 fires, 52,000 acres |
| Year 4 | 88 fires, 78,000 acres |
A journalist claims that years with more wildfires always resulted in more acres burned.
Does the data support the journalist's claim?
A — No, because Year 4 had the fewest fires but the most acres burned, contradicting the claim.. Year 4 had only 88 fires (the fewest) yet burned the most acres (78,000), directly contradicting a claim that more fires always means more acres burned. Choice C misstates Year 3's data—it did not have the most acres burned.
A researcher measured average concentration-test scores for office workers who reported different levels of background noise at their desks:
| Silent | 65 points |
|---|---|
| Low noise | 74 points |
| Moderate noise | 81 points |
| High noise | 58 points |
A workplace consultant claims that concentration scores increase continuously the more background noise a worker has.
Does the data support the consultant's claim?
C — No, because scores rise from silent to moderate noise, but then fall sharply for workers with high noise.. Scores rise from 65 to 74 to 81, but then drop to 58 for the high-noise group—not a continuous increase, and in fact ending lower than silent. Choice C correctly identifies this non-monotonic pattern, disproving the 'continuously' claim.
A researcher recorded the number of community workshops held and the number of new small business registrations in a district over four quarters:
| Q1 | 2 workshops, 14 registrations |
|---|---|
| Q2 | 5 workshops, 26 registrations |
| Q3 | 4 workshops, 21 registrations |
| Q4 | 8 workshops, 39 registrations |
Which choice best describes the relationship shown in the table?
A — As the number of workshops held increased, the number of new business registrations generally also increased.. Both workshop counts and registrations generally rise together across the four quarters (2→5→4→8 roughly tracking 14→26→21→39), a clear positive relationship matching choice A.
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.