Basic Ability Test Basic Ability Data Interpretation Skills 3 — Questions and Answers
Question 1: A scatter plot shows a strong positive correlation between study hours and exam scores. What does this indicate?
- As study hours increase, scores tend to increase (Correct answer)
- As study hours increase, scores tend to decrease
- Study hours have no effect on scores
- Scores cause students to study more
Correct answer: As study hours increase, scores tend to increase
A positive correlation means both variables move in the same direction.
Question 2: A frequency table shows: Score 1-10: 5 students, 11-20: 12 students, 21-30: 8 students. What fraction of students scored 11-20?
- 12/25 (Correct answer)
- 12/20
- 8/25
- 5/25
Correct answer: 12/25
Total students = 5 + 12 + 8 = 25; fraction = 12/25.
Question 3: A line graph shows Company A's revenue grew from $2M to $3M in one year. What is the percent increase?
- 50% (Correct answer)
- 33%
- 150%
- 100%
Correct answer: 50%
Percent increase = (3 - 2) / 2 × 100 = 50%.
Question 4: A stacked bar chart shows total production of 500 units: Product X accounts for 200, Product Y for 150, Product Z for 150. Which product has the largest share?
- Product X (Correct answer)
- Product Y
- Product Z
- Y and Z are tied for largest
Correct answer: Product X
Product X has 200 units, more than Y or Z's 150 each.
Question 5: A data set has values 4, 8, 6, 10, 2. What is the range?
- 8 (Correct answer)
- 6
- 10
- 4
Correct answer: 8
Range = maximum − minimum = 10 − 2 = 8.
Question 6: A chart shows product returns: Week 1: 10, Week 2: 15, Week 3: 12, Week 4: 13. Which week had the highest number of returns?
- Week 2 (Correct answer)
- Week 1
- Week 3
- Week 4
Correct answer: Week 2
Week 2 had 15 returns, which is the highest value in the data.
Question 7: A table shows employee counts per year: 2020: 50, 2021: 60, 2022: 72. If growth continues at the same rate, what will the count be in 2023?
- 86 (Correct answer)
- 84
- 80
- 90
Correct answer: 86
Growth rate = 20%: 50→60→72→72×1.2 = 86.4 ≈ 86.
Basic Ability Test Basic Ability Data Interpretation Skills 3
A scatter plot shows a strong positive correlation between study hours and exam scores.
What does this indicate?