GMAT Integrated Reasoning Reading Statistical Data Quiz

1. A company's quarterly revenue (in millions) is: Q1: $45, Q2: $52, Q3: $48, Q4: $61. What is the average quarterly revenue?

$50.5 million

$51.5 million

$52 million

$53.5 million

Sum: 45 + 52 + 48 + 61 = 206. Average: 206 ÷ 4 = $51.5 million.

Explanation

Sum: 45 + 52 + 48 + 61 = 206. Average: 206 ÷ 4 = $51.5 million.

2. A dataset shows employee ages: 28, 35, 42, 38, 45, 32. What is the median age?

35

36.5

37

38

Ordered: 28, 32, 35, 38, 42, 45. Median of six values = (35 + 38) ÷ 2 = 36.5.

Explanation

Ordered: 28, 32, 35, 38, 42, 45. Median of six values = (35 + 38) ÷ 2 = 36.5.

3. A table shows that Product A has a 15% market share and Product B has 22%. If total market sales are $500 million, what is the combined revenue for Products A and B?

$135 million

$155 million

$175 million

$185 million

Product A: 15% × $500M = $75M. Product B: 22% × $500M = $110M. Total: $185M.

Explanation

Product A: 15% × $500M = $75M. Product B: 22% × $500M = $110M. Total: $185M.

4. A chart displays website traffic growth: Month 1: 10,000 visitors; Month 2: 12,500; Month 3: 15,625. What is the month-over-month growth rate?

20%

22%

25%

30%

Month 1 to 2: (12,500 - 10,000) ÷ 10,000 = 25%. Month 2 to 3: (15,625 - 12,500) ÷ 12,500 = 25%.

Explanation

Month 1 to 2: (12,500 - 10,000) ÷ 10,000 = 25%. Month 2 to 3: (15,625 - 12,500) ÷ 12,500 = 25%.

5. A survey shows 60% of respondents prefer Option A, 30% prefer Option B, and 10% prefer Option C. If 500 people were surveyed, how many chose Option A?

250

275

300

350

60% × 500 = 0.60 × 500 = 300 respondents.

Explanation

60% × 500 = 0.60 × 500 = 300 respondents.

6. A profit margin table shows: Year 1: 8%, Year 2: 10%, Year 3: 12%, Year 4: 11%. What is the average profit margin across all years?

9.5%

10%

10.25%

11%

Sum: 8 + 10 + 12 + 11 = 41. Average: 41 ÷ 4 = 10.25%.

Explanation

Sum: 8 + 10 + 12 + 11 = 41. Average: 41 ÷ 4 = 10.25%.

7. A graph shows student test scores: 75, 82, 88, 92, 78. Which score represents the 60th percentile?

75

82

88

92

Ordered: 75, 78, 82, 88, 92. The 60th percentile falls at position 3.6, which corresponds to 88.

Explanation

Ordered: 75, 78, 82, 88, 92. The 60th percentile falls at position 3.6, which corresponds to 88.

8. A dataset shows quarterly expenses: Q1: $120k, Q2: $150k, Q3: $135k, Q4: $180k. What is the range of quarterly expenses?

$50k

$55k

$60k

$65k

Range = Maximum - Minimum = $180k - $120k = $60k.

Explanation

Range = Maximum - Minimum = $180k - $120k = $60k.

9. A table shows that Company X's revenue increased from $200M to $280M over two years. What is the total percentage increase?

30%

35%

40%

45%

Percentage increase = ($280M - $200M) ÷ $200M × 100 = $80M ÷ $200M × 100 = 40%.

Explanation

Percentage increase = ($280M - $200M) ÷ $200M × 100 = $80M ÷ $200M × 100 = 40%.

10. A chart shows daily sales: Monday: $5,000; Tuesday: $6,200; Wednesday: $5,800; Thursday: $7,000; Friday: $8,000. What is the standard deviation trend?

Sales are declining

Sales show consistent growth

Sales fluctuate with an upward trend

Sales are stagnant

Data shows variation (fluctuation) but overall movement from $5,000 to $8,000 indicates an upward trend.

Explanation

Data shows variation (fluctuation) but overall movement from $5,000 to $8,000 indicates an upward trend.

11. A dataset contains values: 15, 18, 20, 22, 25, 30. If a new value of 12 is added, how does the mean change?

Increases

Decreases

Remains the same

Cannot be determined

Original mean: (15+18+20+22+25+30)÷6 = 21.67. New mean: (15+18+20+22+25+30+12)÷7 = 20.29. Mean decreases.

Explanation

Original mean: (15+18+20+22+25+30)÷6 = 21.67. New mean: (15+18+20+22+25+30+12)÷7 = 20.29. Mean decreases.

12. A table shows investment returns: Fund A: 8%, Fund B: 12%, Fund C: 10%, Fund D: 14%. What is the difference between the highest and lowest return?

4%

5%

6%

7%

Highest return: 14% (Fund D). Lowest return: 8% (Fund A). Difference: 14% - 8% = 6%.

Explanation

Highest return: 14% (Fund D). Lowest return: 8% (Fund A). Difference: 14% - 8% = 6%.

13. A graph displays customer satisfaction ratings on a scale of 1–5: 4, 5, 3, 4, 5, 4, 3. What is the mode?

3

4

5

3.5

Mode is the most frequently occurring value. The rating 4 appears three times, more than any other value.

Explanation

Mode is the most frequently occurring value. The rating 4 appears three times, more than any other value.

14. A dataset shows that 40% of budget is allocated to marketing, 35% to operations, and 25% to R&D. If total budget is $2 million, how much is allocated to marketing and R&D combined?

$1 million

$1.1 million

$1.2 million

$1.3 million

Marketing: 40% × $2M = $0.8M. R&D: 25% × $2M = $0.5M. Combined: $0.8M + $0.5M = $1.3M.

Explanation

Marketing: 40% × $2M = $0.8M. R&D: 25% × $2M = $0.5M. Combined: $0.8M + $0.5M = $1.3M.

15. A table shows annual production (in units): Year 1: 5,000; Year 2: 5,500; Year 3: 6,050; Year 4: 6,655. What is the approximate annual growth rate?

8%

9%

10%

11%

Year 1–2: 10% growth. Year 2–3: 10% growth. Year 3–4: 10% growth. Consistent annual growth rate is 10%.

Explanation

Year 1–2: 10% growth. Year 2–3: 10% growth. Year 3–4: 10% growth. Consistent annual growth rate is 10%.

GMAT Integrated Reasoning Reading Statistical Data Quiz

1. A company's quarterly revenue (in millions) is: Q1: $45, Q2: $52, Q3: $48, Q4: $61. What is the average quarterly revenue?

2.

What first name or nickname would you like us to use?

2. A dataset shows employee ages: 28, 35, 42, 38, 45, 32. What is the median age?

3. A table shows that Product A has a 15% market share and Product B has 22%. If total market sales are $500 million, what is the combined revenue for Products A and B?

4. A chart displays website traffic growth: Month 1: 10,000 visitors; Month 2: 12,500; Month 3: 15,625. What is the month-over-month growth rate?

5. A survey shows 60% of respondents prefer Option A, 30% prefer Option B, and 10% prefer Option C. If 500 people were surveyed, how many chose Option A?

6. A profit margin table shows: Year 1: 8%, Year 2: 10%, Year 3: 12%, Year 4: 11%. What is the average profit margin across all years?

7. A graph shows student test scores: 75, 82, 88, 92, 78. Which score represents the 60th percentile?

8. A dataset shows quarterly expenses: Q1: $120k, Q2: $150k, Q3: $135k, Q4: $180k. What is the range of quarterly expenses?

9. A table shows that Company X's revenue increased from $200M to $280M over two years. What is the total percentage increase?

10. A chart shows daily sales: Monday: $5,000; Tuesday: $6,200; Wednesday: $5,800; Thursday: $7,000; Friday: $8,000. What is the standard deviation trend?

11. A dataset contains values: 15, 18, 20, 22, 25, 30. If a new value of 12 is added, how does the mean change?

12. A table shows investment returns: Fund A: 8%, Fund B: 12%, Fund C: 10%, Fund D: 14%. What is the difference between the highest and lowest return?

13. A graph displays customer satisfaction ratings on a scale of 1–5: 4, 5, 3, 4, 5, 4, 3. What is the mode?

14. A dataset shows that 40% of budget is allocated to marketing, 35% to operations, and 25% to R&D. If total budget is $2 million, how much is allocated to marketing and R&D combined?

15. A table shows annual production (in units): Year 1: 5,000; Year 2: 5,500; Year 3: 6,050; Year 4: 6,655. What is the approximate annual growth rate?