Question

1. erskine uses a website to collect data on the percentage of the united states population that is age 65 or older. he finds the percentage for every decade since 1900. which type of display should he use for this information? why?

Explanation:

A line graph is suitable here. The data is about the percentage of the US population (age 65 or older) over different decades (a continuous time - related variable). A line graph is effective for showing how a variable (the percentage) changes over time (decades), as it can clearly display trends (such as an increase or decrease in the percentage over the decades) by connecting the data points for each decade.

Answer:

Erskine should use a line graph. Because a line graph is ideal for displaying how a variable (the percentage of the US population aged 65 or older) changes over time (every decade since 1900), and it can clearly show trends in the data.