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Activity 5.1 Constructing a Pie Graph

Autor:GeoGebra @ NISMED, Abi Gonzales

Your Task

Group A aims to learn about the everyday sleeping habits of students in their Grade 7 batch. To investigate this, they conducted a survey of their batchmates' daily sleeping hours. Their sample consisted of two (2) sections from their batch. They randomly selected 20 students from each section, out of the 45 students in each section. The spreadsheet below displays the typical daily sleeping hours of the students in their sample for each section. Your task is to create a data representation that will help you analyze and gain insights into the students' daily sleeping hours. Afterward, answer the questions below. Additionally, a tutorial on constructing a pie graph using this applet is provided below.

Section A

Section B

Representing Data

What are the details of the data representations did you use and/or consider in your construction of the graphs?

Representing Data

Is this data representation an effective choice for presenting the data? Why or why not?

Interpreting Data

What information about the daily sleeping hours during school days of students did you get from the data representations you constructed?

Interpreting Data

How do the daily sleeping hours of Section A compare to the daily sleeping hours of Section B?

How to Construct a Pie Graph in GeoGebra
Step 1: Determine the categories you will use in organizing the data. Input it in the column for Category. See Figure 1.
[i][center][/center][center][/center][/i][i][center][/center][/i][size=150][size=100][i][center]Figure 1[/center][/i][/size][/size]

Figure 1

Step 2: To determine the count for each category, click the cell beside your category, then input this command (See Figure 2)
[i][center][/center][center][/center][/i][i][left][/left][/i][size=100][right][/right][/size][left][size=100][/size][/left][center][i][/i][/center][size=100][center][i]Figure 2[/i][/center][/size]

Figure 2

For example, to determine the count of 1 in Section A and count of 2 in Section A, use these commands (See Figure 3) Note: Do NOT DELETE the temporary frequency, just EDIT.
[i][center][/center][center][/center][/i][i][center][/center][/i][size=100][i][center]Figure 3[/center][/i][/size]

Figure 3

Step 3: To edit the legends, follow the steps below:
  • Click the squares that are NOT needed, then click delete. Do the same with the text besides that square that are not needed.
  • Click on the Graphics view, the left side view (See Figure 4), and click Text Toolbar Imagetool. Then, type the text (See Figure 5).
[i][center][/center][/i][size=100][i][center]Figure 4[/center][/i][/size]

Figure 4

[i][left][/left][/i][size=100][i][left][/left][/i][/size][center][size=100][i][/i][/size][/center][left][i][/i][/left][size=100][left][i][/i][/left][/size][i][size=100]Figure 5[/size][size=100][left][/left][/size][/i]

Figure 5

Optional:

  • If you want to add other texts, such as title or additional explanations, you can use the Text Toolbar Image tool.
  • Click the Move tool and adjust the position of the text.
  • To change the style of your text, click the text you want to customize and click Style menu. (See Figure 6)
[i][left][/left][/i][size=100][center][i][/i][/center][left][i][/i][/left][/size][center][/center][size=100][center][/center][left][i]Figure 6[/i][/left][/size]



Figure 6

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