AQL Data Interpretation and Graphs 2

Question 1

A histogram differs from a bar graph in that a histogram:

Accepted Answer

Shows the distribution of continuous data grouped into intervals

Answer

A histogram groups continuous data into intervals (bins) and shows frequency distribution, whereas a bar graph compares distinct categories.

Question 2

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?

Accepted Answer

2:3

Answer

300:450 simplifies by dividing both by 150 to get 2:3.

Question 3

A double bar graph is most useful for:

Accepted Answer

Comparing two data sets across the same categories

Answer

A double bar graph places two bars side by side for each category, making it easy to compare two related data sets.

Question 4

From a data table, total sales went from $80,000 to $100,000 year over year. What is the percent increase?

Accepted Answer

25%

Answer

Percent increase = (100,000 − 80,000) / 80,000 × 100 = 20,000 / 80,000 × 100 = 25%.

Question 5

A stem-and-leaf plot is used to:

Accepted Answer

Display individual data values while showing the shape of the distribution

Answer

A stem-and-leaf plot organizes individual data values by splitting them into stems and leaves, showing both distribution shape and exact values.

AQL - Academic and Quantitative Literacy Practice Test

AQL - Academic and Quantitative Literacy Practice Test

AQL Data Interpretation and Graphs 2