CTBS - Comprehensive Test of Basic Skills Data Interpretation Skills Questions and Answers — Questions and Answers
Question 1: The bar chart below shows the number of books sold by genre at a local bookstore in January. <pre> Book Sales - January ------------------------- Fiction: ███████████████ (150) Non-Fiction: ████████████ (120) Children's: █████████ (90) Sci-Fi: ███████ (75) </pre> How many more Fiction books were sold than Children's books?
- 90
- 60 (Correct answer)
- 30
- 240
Correct answer: 60
To find the difference, subtract the number of Children's books sold (90) from the number of Fiction books sold (150). The calculation is 150 - 90 = 60.
Question 2: The line graph shows the average daily temperature for a city over a 5-day period. <pre> Day 1: 55°F Day 2: 60°F Day 3: 58°F Day 4: 65°F Day 5: 68°F </pre> Between which two consecutive days was the greatest increase in temperature?
- Day 4 and Day 5
- Day 1 and Day 2
- Day 3 and Day 4 (Correct answer)
- Day 2 and Day 3
Correct answer: Day 3 and Day 4
Calculate the temperature change between each pair of consecutive days: Day 1 to 2 (+5°F), Day 2 to 3 (-2°F), Day 3 to 4 (+7°F), and Day 4 to 5 (+3°F). The largest increase was 7°F, which occurred between Day 3 and Day 4.
Question 3: The pie chart represents a student's total monthly expenses of $2,000. <pre> Monthly Expenses: - Rent: 40% - Food: 25% - Tuition: 20% - Transportation: 10% - Other: 5% </pre> Based on the chart, how much money does the student spend on Food and Transportation combined?
- $500
- $800
- $600
- $700 (Correct answer)
Correct answer: $700
First, add the percentages for Food (25%) and Transportation (10%) to get a combined total of 35%. Then, calculate 35% of the total monthly expenses: 0.35 * $2,000 = $700.
Question 4: Based on the data in the table comparing four smartphone models, which of the following statements is accurate? <pre> | Model | Price | Battery Life | Screen Size | |-------|--------|--------------|-------------| | Alpha | $799 | 12 hours | 6.1 inches | | Beta | $999 | 15 hours | 6.7 inches | | Gamma | $699 | 11 hours | 5.9 inches | | Delta | $899 | 14 hours | 6.5 inches | </pre>
- The cheapest model has the shortest battery life. (Correct answer)
- The Alpha model has a larger screen than the Delta model.
- The Beta model is cheaper than the Delta model.
- The model with the smallest screen size is the most expensive.
Correct answer: The cheapest model has the shortest battery life.
By evaluating each statement against the table: The statement 'The cheapest model has the shortest battery life' is true because the Gamma model costs $699 (the lowest price) and has a battery life of 11 hours (the shortest duration). The other statements are false.
Question 5: A survey of 200 high school students asked about their primary source of news. The results showed that 50% of students use social media, 25% use news websites, 15% watch television news, and the remaining students rely on print newspapers. According to the survey results, how many students cited print newspapers as their primary news source?
- 10
- 30
- 20 (Correct answer)
- 15
Correct answer: 20
First, calculate the percentage of students who rely on print newspapers. Add the given percentages: 50% + 25% + 15% = 90%. The remaining percentage is 100% - 90% = 10%. Finally, calculate 10% of the total number of students surveyed: 0.10 * 200 = 20 students.
Question 6: The table shows the team size for three projects, and the bar chart shows the percentage of tasks completed for each. Which project has the largest team size and has completed the smallest percentage of its tasks? <pre> Table: Project Team Size | Project | Team Size | |-----------|-----------| | Project A | 8 members | | Project B | 5 members | | Project C | 12 members| Chart: Percentage of Tasks Completed Project A: ████████████████ (75%) Project B: ██████████████████ (90%) Project C: ██████████ (50%) </pre>
- Project A
- Project C (Correct answer)
- Project B
- This cannot be determined from the data.
Correct answer: Project C
To answer this question, you must use information from both the table and the chart. According to the table, Project C has the largest team size (12 members). According to the bar chart, Project C has the lowest task completion rate (50%). Therefore, Project C fits both criteria.
CTBS - Comprehensive Test of Basic Skills Data Interpretation Skills Questions and Answers
The bar chart below shows the number of books sold by genre at a local bookstore in January.
Book Sales - January
-------------------------
Fiction: ███████████████ (150)
Non-Fiction: ████████████ (120)
Children's: █████████ (90)
Sci-Fi: ███████ (75)
How many more Fiction books were sold than Children's books?