A study done in a suburban area reported the percentage of...

A study done in a suburban area reported the percentage of Internet users in various age groups. The data are given in the table. a. For which age group is the percentage of Internet users the greatest? b. Draw a bar graph with vertical bars to illustrate these data. $$\begin{array}{c|c}\hline \begin{array}{c}\text { Age Group } \\\text { (in years) }\end{array} & \begin{array}{c}\text { Percentage of } \\\text { Internet Users }\end{array} \\\hline 18-29 & 93 \% \\\hline 30-49 & 51 \% \\\hline 50-64 & 70 \% \\\hline 65+ & 38 \% \\\hline\end{array}$$

A study done in a suburban area reported the percentage of Internet users in various age groups. The data are given in the table.
a. For which age group is the percentage of Internet users the greatest?
b. Draw a bar graph with vertical bars to illustrate these data.
$$\begin{array}{c|c}\hline \begin{array}{c}\text { Age Group } \\\text { (in years) }\end{array} & \begin{array}{c}\text { Percentage of } \\\text { Internet Users }\end{array} \\\hline 18-29 & 93 \% \\\hline 30-49 & 51 \% \\\hline 50-64 & 70 \% \\\hline 65+ & 38 \% \\\hline\end{array}$$

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Key Concepts

Categorical Data

Categorical data involves information that can be divided into distinct groups or categories that do not have a numerical ordering inherent to them. In many studies, such data is collected to compare different groups, and is often represented in forms like tables or bar graphs to show the distribution of measurements, such as percentages or counts, across defined categories.

Bar Graph

A bar graph is a type of chart that uses rectangular bars to represent data values for different categories. The length or height of each bar is proportional to the value it represents, making it a useful visual tool for comparing the relative sizes or magnitudes of data across various groups. Vertical bars are commonly used when the categories are plotted along the horizontal axis and the values on the vertical axis.

Data Interpretation

Data interpretation involves analyzing and understanding collected information in order to extract meaningful insights. This can include identifying trends, comparing proportions among groups, and pinpointing which category exhibits the highest or lowest measurement. This skill is essential for making informed decisions based on the comparative analysis of data values, such as determining which category has the greatest percentage.

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