Practice Test Geeks(NBT) National Benchmark Test Practice Test
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Data Interpretation & Analysis Flashcards

7 cards from real NBT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. A line graph shows monthly sales (units): Jan = 500, Feb = 600, Mar = 720, Apr = 864. If the same growth rate continues, what will May's sales be?

    Answer: 1,037

    Each month grows by a factor of 1.2 (20%); May = 864 × 1.2 = 1,036.8 ≈ 1,037.

  2. A line graph shows a city's population: Year 1 = 50,000; Year 2 = 55,000; Year 3 = 60,500; Year 4 = 66,550. Which type of growth does this represent?

    Answer: Exponential

    Each year's population is 1.10× the previous year, indicating a constant growth rate — exponential growth.

  3. A distance-time graph shows a car traveling 120 miles in 2 hours, stopping for 30 minutes, then traveling 90 miles in 1.5 hours. What is the car's average speed for driving time only?

    Answer: 60 mph

    Total driving distance = 210 miles; total driving time = 3.5 hours; average speed = 210 / 3.5 = 60 mph.

  4. A line graph shows annual inflation rates: Year 1 = 2.5%, Year 2 = 3.0%, Year 3 = 3.8%, Year 4 = 2.9%, Year 5 = 2.1%. Between which consecutive years was the increase in the inflation rate greatest?

    Answer: Year 2 to 3

    Year 1→2: +0.5pp; Year 2→3: +0.8pp; Year 3→4: −0.9pp; Year 4→5: −0.8pp — Year 2 to 3 shows the largest increase.

  5. A scatter plot shows a positive correlation between study hours (x) and exam scores (y). The trend line equation is y = 5x + 40. What score is predicted for a student who studied 8 hours?

    Answer: 80

    y = 5(8) + 40 = 40 + 40 = 80.

  6. A graph shows two companies' stock prices over 6 months. Company A: $20 → $28; Company B: $50 → $62. Which company had the greater percentage increase?

    Answer: Company A with 40%

    Company A: (28−20)/20 × 100 = 40%; Company B: (62−50)/50 × 100 = 24% — Company A's percentage gain is greater.

  7. A line graph shows monthly website visitors with a perfectly linear trend: Jan = 8,000; Feb = 11,000; Mar = 14,000; Apr = 17,000. Extending the trend, what is the predicted June visitor count?

    Answer: 23,000

    The trend increases by 3,000 per month; May = 20,000 and June = 23,000.