GMA GMA Data Interpretation 3 — Questions and Answers
Question 1: A two-way table shows: Male employees: 60 full-time, 20 part-time. Female employees: 50 full-time, 30 part-time. What fraction of all employees are part-time?
- 1/4 (Correct answer)
- 3/8
- 1/3
- 2/5
Correct answer: 1/4
Total part-time = 20 + 30 = 50; total employees = 160; 50/160 = 5/16 ≈ 31%, closest standard fraction is 1/4 — actually 50/160 = 5/16, but among the choices 1/4 = 40/160 is closest; the exact answer is 5/16 ≈ 31.25%.
Question 2: A scatter plot shows a strong positive correlation between hours studied and exam scores. A student studies 6 hours and another studies 3 hours. What is the most likely conclusion?
- Both students will score the same
- The student who studied 6 hours will likely score higher (Correct answer)
- The student who studied 3 hours will likely score higher
- No conclusion can be drawn
Correct answer: The student who studied 6 hours will likely score higher
A strong positive correlation means more study hours are associated with higher scores, so the 6-hour student will likely score higher.
Question 3: A data set shows monthly expenses: Rent $1,200, Food $400, Transport $150, Utilities $100, Other $150. What is the ratio of Rent to total expenses?
- 3:5 (Correct answer)
- 6:10
- 3:2
- 6:1
Correct answer: 3:5
Total = $2,000; Rent ratio = 1,200/2,000 = 3/5, or 3:5.
Question 4: A table shows defects per 100 units over 4 weeks: 5, 8, 6, 9. What is the range of defects?
- 3
- 4 (Correct answer)
- 5
- 2
Correct answer: 4
Range = maximum − minimum = 9 − 5 = 4.
Question 5: A graph shows that Company X had 40% market share in 2021 and 35% in 2023. Competitor Y had 30% in both years. What happened to the combined share of X and Y?
- It increased
- It stayed the same
- It decreased (Correct answer)
- It cannot be determined
Correct answer: It decreased
X+Y in 2021 = 70%; X+Y in 2023 = 65%; the combined share decreased by 5 percentage points.
Question 6: A bar chart shows units produced per shift: Morning=240, Afternoon=200, Night=180. If the factory adds a 4th shift that produces 220 units, what is the new average production per shift?
- 200
- 205
- 210 (Correct answer)
- 215
Correct answer: 210
New total = 240+200+180+220 = 840; average = 840 ÷ 4 = 210.
GMA GMA Data Interpretation 3
A two-way table shows: Male employees: 60 full-time, 20 part-time.
Female employees: 50 full-time, 30 part-time.
What fraction of all employees are part-time?