AQL Data Interpretation and Graphs 3

Question 1

A graph's y-axis starts at 500 instead of 0. This could be misleading because:

Accepted Answer

It exaggerates the visual difference between data points

Answer

A truncated axis (not starting at zero) compresses the visual scale and can make small differences appear much larger than they actually are.

Question 2

A box plot (box-and-whisker plot) displays which of the following?

Accepted Answer

The median, quartiles, and range of a data set

Answer

A box plot summarizes a data set by showing the median, the first and third quartiles (the box), and the minimum and maximum values (the whiskers).

Question 3

If a line graph shows a steep upward slope, what does that indicate about the rate of change?

Accepted Answer

The variable is increasing rapidly

Answer

A steep upward slope on a line graph indicates a large, rapid increase in the measured variable over the given time period.

Question 4

When interpreting a table of data, what is the first step you should take?

Accepted Answer

Read the title and column/row headings to understand what the data represents

Answer

Reading the title and headings first ensures you understand what is being measured before attempting any calculations or comparisons.

Question 5

A scatter plot with data points scattered randomly with no clear trend indicates:

Accepted Answer

No correlation between the two variables

Answer

When scatter plot points show no discernible pattern or direction, it indicates there is little or no correlation between the two variables.

AQL - Academic and Quantitative Literacy Practice Test