Data Interpretation and Graphs Flashcards
6 cards from real AQL practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Data Interpretation and Graphs flashcards as text
A histogram differs from a bar graph in that a histogram:
Answer: Shows the distribution of continuous data grouped into intervals
A histogram groups continuous data into intervals (bins) and shows frequency distribution, whereas a bar graph compares distinct categories.
If a table shows that Product A sold 300 units and Product B sold 450 units, what is the ratio of Product A sales to Product B sales in simplest form?
Answer: 2:3
300:450 simplifies by dividing both by 150 to get 2:3.
A double bar graph is most useful for:
Answer: Comparing two data sets across the same categories
A double bar graph places two bars side by side for each category, making it easy to compare two related data sets.
From a data table, total sales went from $80,000 to $100,000 year over year. What is the percent increase?
Answer: 25%
Percent increase = (100,000 − 80,000) / 80,000 × 100 = 20,000 / 80,000 × 100 = 25%.
A stem-and-leaf plot is used to:
Answer: Display individual data values while showing the shape of the distribution
A stem-and-leaf plot organizes individual data values by splitting them into stems and leaves, showing both distribution shape and exact values.
Which graph would best display the proportion of time a student spends on homework, sports, reading, and leisure each week?
Answer: Pie chart
A pie chart is ideal for showing how a whole is divided into parts, making it perfect for illustrating proportional breakdowns.