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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 boxplot shows a median of 70, first quartile 55, and third quartile 85. What is the interquartile range (IQR)?

    Answer: 30

    IQR = Q3 - Q1 = 85 - 55 = 30.

  2. A stacked bar chart shows a month's budget: rent 40%, food 25%, transport 15%, other 20%. If total spending is $2,500, how much is spent on food and transport combined?

    Answer: $1,000

    Food + transport = 40% of $2,500 = $1,000.

  3. A line graph shows a stock at $80 on Monday, dropping 10% Tuesday, then rising 10% Wednesday. What is the Wednesday price?

    Answer: $79.20

    Tuesday = $72, and a 10% rise gives $72 × 1.10 = $79.20.

  4. A frequency table shows scores: 10 students scored 'A', 15 'B', 20 'C', 5 'D'. If one student is chosen at random, what is the probability of choosing a 'B' student?

    Answer: 0.30

    Total = 50 students, and 15/50 = 0.30.

  5. A double-line graph shows Product X selling 200 units and Product Y selling 150 units in January. In June, X sells 250 and Y sells 300. What is the change in the combined total from January to June?

    Answer: +200 units

    January total = 350, June total = 550, so the change is +200 units.

  6. A bar graph shows daily visitors: Mon 300, Tue 450, Wed 500, Thu 350, Fri 400. What is the median number of daily visitors?

    Answer: 400

    Ordered values are 300, 350, 400, 450, 500, so the middle value is 400.

  7. A pie chart shows expenses totaling $8,000, with a 'Marketing' slice spanning 45 degrees. How much is the Marketing expense?

    Answer: $1,000

    45/360 = 1/8, and 1/8 of $8,000 = $1,000.