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Multi-Step Data Analysis and Graphs Flashcards

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

Read the first 7 Multi-Step Data Analysis and Graphs flashcards as text

  1. A bar graph shows 4 salespeople with sales of $12K, $18K, $15K, and $15K. What is the mode of the sales figures?

    Answer: $15K

    The value $15K appears twice, more than any other, so it is the mode.

  2. A line graph shows distance versus time: a car travels 180 miles in 3 hours at constant speed. How far does it travel in 5 hours?

    Answer: 300 miles

    Speed = 60 mph, so in 5 hours it travels 60 × 5 = 300 miles.

  3. A table shows a recipe ratio of flour to sugar of 3:2. A baker uses 450g of flour. How much sugar is needed?

    Answer: 300g

    Each ratio part = 450/3 = 150g, so sugar = 2 × 150 = 300g.

  4. A histogram shows ages grouped: 20-29 (4 people), 30-39 (10 people), 40-49 (6 people). Which interval contains the median age?

    Answer: 30-39

    With 20 people, the 10th and 11th values both fall in the 30-39 group (positions 5-14).

  5. A bar graph shows revenue of $50K in Year 1 and $45K in Year 2. What is the percent decrease?

    Answer: 10%

    Decrease = $5K/$50K = 10%.

  6. A scatterplot's trend line passes through (2, 8) and (6, 20). What is the slope of the line?

    Answer: 3

    Slope = (20 - 8)/(6 - 2) = 12/4 = 3.

  7. A table shows survey responses: 120 'Yes', 80 'No', 40 'Maybe'. What percent of respondents answered 'Yes'?

    Answer: 50%

    Total = 240 responses, and 120/240 = 50%.