NBT Quantitative Literacy 3 — Questions and Answers
Question 1: A data set contains the values: 4, 7, 7, 9, 13. What is the median?
- 7 (Correct answer)
- 8
- 9
- 7.5
Correct answer: 7
With 5 ordered values, the middle (3rd) value is 7.
Question 2: A scatter plot shows a strong positive correlation between study hours and test scores. Which conclusion is best supported?
- Students who study more tend to score higher (Correct answer)
- More study hours cause higher scores
- All students who study 5 hours score above 80
- Study hours are the only factor affecting scores
Correct answer: Students who study more tend to score higher
Correlation indicates a tendency, not causation or a guaranteed outcome for every individual.
Question 3: A container holds 4.5 liters. If 750 mL is removed, how many liters remain?
- 3.75 liters (Correct answer)
- 3.5 liters
- 4 liters
- 3.25 liters
Correct answer: 3.75 liters
750 mL = 0.75 L; 4.5 − 0.75 = 3.75 liters remain.
Question 4: A table shows three phone plans: Plan A at $35/mo with 5GB, Plan B at $50/mo with 10GB, Plan C at $70/mo with 20GB. Which plan has the lowest cost per GB?
- Plan C at $3.50/GB (Correct answer)
- Plan B at $5.00/GB
- Plan A at $7.00/GB
- All plans cost the same per GB
Correct answer: Plan C at $3.50/GB
Cost/GB: A=$7.00, B=$5.00, C=$3.50; Plan C has the lowest cost per GB.
Question 5: A bank account earns 4% simple interest per year. If $2,500 is deposited, how much interest is earned after 3 years?
- $300 (Correct answer)
- $250
- $312
- $350
Correct answer: $300
Simple interest = P × r × t = 2,500 × 0.04 × 3 = $300.
Question 6: A map has a scale of 1 cm : 50 km. Two cities are 7.4 cm apart on the map. What is the actual distance?
- 370 km (Correct answer)
- 350 km
- 360 km
- 380 km
Correct answer: 370 km
Actual distance = 7.4 × 50 = 370 km.
Question 7: A frequency table shows scores: 60-69 (5 students), 70-79 (8 students), 80-89 (12 students), 90-99 (5 students). What percentage scored 80 or above?
- 56.67% (Correct answer)
- 50%
- 60%
- 53.33%
Correct answer: 56.67%
Total = 30; students scoring 80+ = 17; percentage = 17/30 × 100 ≈ 56.67%.
NBT Quantitative Literacy 3
A data set contains the values: 4, 7, 7, 9, 13.
What is the median?