1. Warm Up Problem
Find the surface area of the pyramid.

2. Select and Appropriate Display
Lesson 12-6

3. Objectives
I can select an appropriate display for a set of data.

4. Notes
Type of Display Best used to… Bar Graph show the # of items in specific categories Box Plot show measures of variation for a set of data or very large sets of data Histogram show frequency of data divided into equal intervals Line Graph show change over time Line Plot show how many times each number occurs

5. Example 1 Which display allows you to tell the mode of the data?
The line plot shows each night’s data. The number of orders that occurs most frequently is 27. The box plot shows the spread of the data, but does not show individual data so it does not show the mode.
Answer: line plot

6. Got It?
1. Which of the displays allows you to easily find the median of the data?

7. Example 2
A survey compared different brands of hair shampoo. The table shows the number of first choice responses for each brand. Select an appropriate type of display to compare the number of responses. Justify your choice.
These data show the number of responses for each brand. A bar graph would be the best display to compare the responses.

8. Example 3 Make the appropriate display of data from Example 2.
Step 1: Draw and label horizontal and vertical axes. Add a title.
Step 2: Draw a bar to represent the number of responses for each brand.

9. Got it?
2) Select an appropriate type of display to allow you to count the number of students with a score of 85. Explain your choice. 3) Make the appropriate display of the data.