Determining the Typical Value
Typical Value
A typical value is a number that best represents or summarizes a set of data. It gives you an idea of what is “normal” or “usual” in the group. Instead of looking at every single number, we use one value to describe the whole set.
In this first task, determine the typical values of daily sleeping hours for each section by studying the data representations given.
Data Representations
In the applet below, there are three types of data representations. The left side of the graphics shows the representations for Section A, and the right side shows those for Section B.
The data is displayed using a bar chart, a pie chart, and a stem-and-leaf plot. You can click the check boxes in the applet to display the corresponding data representations for each data set.
Section A
What is the typical daily sleeping hours of Section A?
Explain or justify your answer about the typical daily sleeping hours of Section A.
Section B
What is the typical daily sleeping hours of Section B?
Explain or justify your answer about the typical daily sleeping hours of Section B.