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 bar graph shows that City A has 40,000 residents and City B has 25,000 residents. How many more residents does City A have than City B?
Answer: 15,000
40,000 − 25,000 = 15,000 more residents in City A than City B.
A pie chart shows that 35% of a budget goes to salaries. If the total budget is $200,000, how much is spent on salaries?
Answer: $70,000
35% of $200,000 = 0.35 × 200,000 = $70,000.
A line graph shows test scores rising from 65 in January to 82 in June. What is the overall increase in points?
Answer: 17
82 − 65 = 17 points of increase over the period.
Which type of graph is most appropriate for showing changes in a variable over time?
Answer: Line graph
Line graphs are specifically designed to show trends and changes in a variable over a continuous time period.
A table shows that 120 out of 480 students chose science as their favorite subject. What percentage chose science?
Answer: 25%
120 ÷ 480 = 0.25, and 0.25 × 100 = 25%.
In a scatter plot, a positive correlation means that:
Answer: As one variable increases, the other variable also tends to increase
A positive correlation means both variables tend to move in the same direction—when one goes up, the other also goes up.