1. Warm Up

2. Lesson 27: Identifying Misleading Representations of Data Statistics and Probability

3. When displaying data, components such as labels or scale can make graphs misleading. The size of increments in the scale can also make a graph misleading.

4. Example This bar graph shows the houses prices for 2 consecutive years. Explain why it might be misleading.

5. Example Here is the same graph with a revised scale. Is the graph less misleading now?

6. Example Explain why the line graph is misleading.

7. This graph appeared on FOX News. Why is it misleading? What do you suppose is the purpose for this graph? How would we fix it? Graph courtesy of http://www.statisticshowto.com/misleading-graphs/

8. Homework Questions

9. Correcting Homework Be kind Hold questions until the end Return the paper to its owner if there are more than 3 empty squares. Be sure to write “C.B. _____________” with your name.

10. Homework 1 st and 2 nd hour: Lesson 27 #1-30 3 rd hour: Lesson 27 #1-15