Education Technology

# Activities

• ##### Subject Area

• Math: Statistics: Inferential Statistics

6-8

60 Minutes

• ##### Device
• TI-73 Explorer™
• ##### Other Materials
This is Activity 9 from the EXPLORATIONS Book:
Discovering Mathematics with the TI-73: Activities for Grades 7 And 8

The following materials are required for this activity:
• Teacher transparency (page 86)
• Soft drink samples
• Small 4-ounce sample cup
• 12 large pitchers

## Taste Test

#### Activity Overview

Students collect sample data and use the calculator to create pictographs, bar graphs, and pie graphs to demonstrate the favorite brand in the sample data.

#### Before the Activity

• See the attached PDF file for detailed instructions for this activity
• Print pages 79 - 84 from the attached PDF file for your class
• #### During the Activity

Distribute the pages to the class.

• Students taste three unlabeled brands of 3 different categories of soft drinks and vote for one brand in each category
• Collect data and enter as lists
• Plot a pictograph for data on each of the three categories
• Find the brand in each category that was most popular and the class favorite
• Plot a circle graph of brand versus total
• Finally, create a triple bar graph displaying all 3 brands with the 3 drink flavors
• #### After the Activity

Students will complete the Worksheet and analyze the results.

Review student results:

• As a class, discuss questions that appeared to be more challenging
• Re-teach concepts as necessary