GAT Data Interpretation 2 — Questions and Answers
Question 1: A double bar chart compares male and female university graduates in Saudi Arabia. Males: 2020: 45,000, 2023: 50,000. Females: 2020: 55,000, 2023: 70,000. What was the female growth rate?
- 11.1%
- 22.2%
- 27.3% (Correct answer)
- 30%
Correct answer: 27.3%
Female growth = ((70,000 - 55,000) / 55,000) × 100 = (15,000/55,000) × 100 = 27.3%. Female graduation numbers grew at a faster rate than male numbers.
Question 2: A stacked bar chart shows Saudi exports: Oil SAR 800B, Petrochemicals SAR 150B, Other SAR 50B. What percentage of total exports are non-oil?
- 15%
- 20% (Correct answer)
- 25%
- 30%
Correct answer: 20%
Total exports = 800 + 150 + 50 = SAR 1,000B. Non-oil = 150 + 50 = SAR 200B. Percentage = (200/1,000) × 100 = 20%.
Question 3: Data shows population of Saudi cities (millions): Riyadh 7.6, Jeddah 4.7, Makkah 2.0, Madinah 1.5, Dammam 1.2. What is the median?
- 1.5
- 2.0 (Correct answer)
- 4.7
- 3.4
Correct answer: 2.0
Arranged in order: 1.2, 1.5, 2.0, 4.7, 7.6. The median (middle value) of 5 numbers is the 3rd value = 2.0 million.
Question 4: A scatter plot shows a positive correlation between study hours and Qudurat scores. If the trend line equation is y = 5x + 40, what score would you predict for 10 hours of study?
- 80
- 90 (Correct answer)
- 95
- 100
Correct answer: 90
Using the equation: y = 5(10) + 40 = 50 + 40 = 90. Linear trend equations allow predictions based on the established pattern in the data.
Question 5: A table shows Qudurat score distribution: 60-70: 15%, 70-80: 30%, 80-90: 35%, 90-100: 20%. If 10,000 students took the exam, how many scored 80 or above?
- 3,500
- 5,000
- 5,500 (Correct answer)
- 6,500
Correct answer: 5,500
Students scoring 80+: 35% + 20% = 55%. Number = 55% × 10,000 = 5,500 students.
Question 6: Monthly visitors to a Saudi museum: Jan 2,000; Feb 2,500; Mar 3,200; Apr 2,800; May 3,500; Jun 4,000. What is the range of the data?
- 1,500
- 2,000 (Correct answer)
- 2,500
- 4,000
Correct answer: 2,000
Range = Maximum - Minimum = 4,000 - 2,000 = 2,000. The range measures the spread of data from lowest to highest value.
GAT Data Interpretation 2
A double bar chart compares male and female university graduates in Saudi Arabia.
Males: 2020: 45,000, 2023: 50,000.
Females: 2020: 55,000, 2023: 70,000.
What was the female growth rate?