CTBS - Comprehensive Test of Basic Skills Data Interpretation Skills Questions and Answers

Question 1

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?

Accepted Answer

60

Answer

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.

Day 1: 55°F
Day 2: 60°F
Day 3: 58°F
Day 4: 65°F
Day 5: 68°F

Between which two consecutive days was the greatest increase in temperature?

Accepted Answer

Day 3 and Day 4

Answer

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.

Monthly Expenses:
- Rent: 40%
- Food: 25%
- Tuition: 20%
- Transportation: 10%
- Other: 5%

Based on the chart, how much money does the student spend on Food and Transportation combined?

Accepted Answer

$700

Answer

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?

| 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  |

Accepted Answer

The cheapest model has the shortest battery life.

Answer

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?

Accepted Answer

20

Answer

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.

CTBS - Comprehensive Test of Basic Skills Practice Test

CTBS - Comprehensive Test of Basic Skills Practice Test

CTBS - Comprehensive Test of Basic Skills Data Interpretation Skills Questions and Answers