The report claims that in Store X, card transactions exceeded cash transactions by a specific number, so we need data showing card higher than cash in that store with the correct difference. From the bar graph, Store X shows 1,080 cash transactions and 1,500 card transactions, yielding a 420-transaction difference where card exceeds cash. Choice C tempts with the same 420 difference but reverses the values, incorrectly showing cash exceeding card, which opposes the claim. Choice B calculates correctly but applies to Store Y, not the specified Store X. In graph questions, carefully match the exact categories like store names to avoid distractors with similar numbers from wrong groups.

The researchers argue Treatment C produced taller plants than A by a specific amount, needing data comparing heights with the correct difference. The bar graph shows 22 cm for Treatment C and 18 cm for A, a 4 cm difference. Choice C also gives a 4 cm difference but with incorrect heights of 20 cm and 16 cm, likely a misreading of bars. Choice B understates to 3 cm using different values. When interpreting bar graphs, measure heights precisely and confirm they match the claimed comparison.

The report's claim requires data showing Fiber as fastest, exceeding Cable by specific Mbps. Choice A cites 120 Mbps from 180 (Cable) to 300 (Fiber), calculating 300 minus 180 as 120, confirming faster. Choice C uses 120 but reverses from 300 (Cable) to 180 (Fiber), implying Cable faster, contradicting the claim. Choice B shows 90 from 5G to Fiber, true but not Cable comparison. When using tables for speed comparisons, calculate differences in the direction that aligns with 'exceeding.'

The summary notes rainfall decreased monthly from May to August, dropping from 78 mm in May to a specific amount in August, so data should show the August value fitting the decline pattern. The table lists August at 48 mm, consistent with decreases from 78 mm. Choices like D at 60 mm would not show a decrease if misreading months. In sequential data tables, confirm the direction of change across all periods mentioned.

The researchers' claim requires data showing Fertilizer C's yield exceeds Fertilizer A's by a specific amount, emphasizing C as highest. From the bar graph, choice A cites 0.7 kg per plant from 3.1 kg (A) to 3.8 kg (C), correctly calculating the difference as 3.8 minus 3.1. Choice C uses the same 0.7 kg but reverses the order from 3.8 kg (C) to 3.1 kg (A), implying A exceeds C, which contradicts the claim. Choice B accurately notes a 0.4 kg difference but compares B to C instead of A to C, missing the required pairing. In bar graphs, always confirm labels and directions to avoid reversing comparisons or selecting incorrect bars.

The economist claims the greatest absolute wage increase over the period was for a specific occupation, needing the largest dollar rise from 2015 to 2025. The table shows Nurse wages from $28 to $34.50, a $6.50 increase, surpassing $5.50, $3.50, and $5.00 in others. Choice A has a $5.50 rise for Technician, close but not the greatest if overlooking Nurse. In tables with changes, calculate all differences to confirm the maximum, not just spot high final values.

The manager's claim requires data showing Mystery's highest revenue exceeding Science Fiction by specific dollars. Choice A cites $3,400 from $12,600 (Science Fiction) to $16,000 (Mystery), as 16,000 minus 12,600 equals 3,400. Choice C uses $3,400 but reverses from $16,000 (Science Fiction) to $12,600 (Mystery), suggesting lower for Mystery. Choice B shows $2,600 from Romance to Mystery, true but wrong genre. In tables by categories, ensure comparisons and directions match to support 'more than' claims.

The study concludes the largest defect reduction occurred on a specific line, requiring data with the greatest decrease in defects per 1,000 units. The table shows Line 3 dropping from 16 to 10 defects, a 6-unit reduction, exceeding the 5, 5, and 4 reductions in other lines. Choice A ties with a 5-unit drop but not the largest, potentially distracting if not calculating all. Choice D shows the smallest change, misrepresenting the maximum. Always compute differences for all options in tables to identify the true extreme.

The text notes that Treatment B had the highest average yield but asks for the treatment with the largest improvement over the no-fertilizer control of 2.1 kg per plant, so we need to calculate each treatment's gain from the table and identify the maximum difference. The table data show Treatment A at 2.5 kg (+0.4), B at 3.4 kg (+1.3), C at 2.8 kg (+0.7), and D at 3.0 kg (+0.9), confirming that B has the largest improvement of +1.3 kg, as stated in choice A. Choice B incorrectly selects Treatment D with +0.9, which is not the largest, perhaps confusing a moderate yield with the biggest gain. Choice D picks Treatment A with the smallest gain of +0.4, likely from miscalculating differences or focusing only on final yields. To build data literacy in such questions, subtract the control value from each treatment to compute improvements, then compare those deltas directly rather than the absolute yields.

The group argues Island C had the greatest percentage increase, so data should show its numbers yielding the highest percent change. The table lists Island C from 80 to 120 pairs, a 50% increase, higher than 30%, 20%, and 10% in others. Choice A shows a 30% rise for Island A, tempting if confusing absolute with percentage change. In tables, compute percentages yourself to confirm claims about relative growth.