1. How do you organize data of students with cell phones that also have MP3 players?

2. In this lesson you will learn how to construct a two way table by collecting and organizing data from a verbal description.

3. Let’s Review A two-way table shows data that pertain to two different categories. Cell Phone No Cell Phone Total MP3 Player Have cell phone and mp3 player Have mp3 player only Total with MP3 player No MP3 Player Have cell phone, but no mp3 player Have no cell phone or mp3 player Total with no MP3 player Total Total with cell phone Total with no cell phone Total Sampled

4. Let’s Review A Common Mistake 27 Cell Phone No Cell Phone Total MP3 Player 27627+6 =33 No MP3 Player 13413+4 = 17 Total 27+13=406+4=10 33+17= 40+10=50

5. Let’s Review Core Lesson Cell PhoneNo Cell PhoneTotal MP3 Player No MP3 Player Total A survey of 8 th graders at a middle school found that 73 students own a cell phone and 60 of those students also own an MP3 player. There are 9 students that do not own a cell phone, but own an MP3 player. Eight students do not own either device

6. Let’s Review Core Lesson Cell Phone No Cell Phone Total MP3 Player609 60+9=69 No MP3 Player 8 Total73

7. Let’s Review Core Lesson Cell Phone No Cell Phone Total MP3 Player609 69 No MP3 Player 73-60 =13 8 Total73

8. Let’s Review Core Lesson Cell Phone No Cell Phone Total MP3 Player609 69 No MP3 Player 13 8 13+8=21 Total73

9. Let’s Review Core Lesson Cell Phone No Cell Phone Total MP3 Player609 69 No MP3 Player 13 8 21 Total739+8=17

10. Let’s Review Core Lesson Cell Phone No Cell Phone Total MP3 Player609 69 No MP3 Player 13 8 21 Total7317 69+21= 73+17= 90

11. Let’s Review Core Lesson Cell Phone No Cell Phone Total MP3 Player609 69 No MP3 Player 13 8 21 Total731790

12. In this lesson you have learned to how construct a two way table by collecting and organizing data from a verbal description.

13. Let’s Review Guided Practice A survey was conducted to see if students get an allowance and if they have to do household chores. Of the 12 students that receive no allowance, 5 of them have no chores. There are 17 students who do chores and receive an allowance, while 6 students get an allowance without doing any chores. Construct a two way table to display this data.

14. Let’s Review Extension Activities Observe the students in your class and create a two way table that displays the combinations on hair color and eye color. The hair color categories are black, brown, red, and blond. The eye color categories are brown, blue, hazel, and green. Please note that this table will be bigger than ones in the lesson.

15. Let’s Review Extension Activities Make a survey that collects two pieces of categorical data. Ask 10 people and record your data. Use the data to construct a two way table. (Some possible topics: boys/girls who study more/less than 1 hour a night; 7 th graders/8 th graers who dress up/ do not dress up for Halloween)

16. Let’s Review Quick Quiz 8 people have no dog. Of those 8, 2 have no cat either. There are 4 people with a cat and a dog, while 3 students have a dog and no cat. DogNo DogTotal Cat No Cat Total How many people were surveyed?

17. Let’s Review Quick Quiz 25 students were surveyed. 14 students do not participate in sports and 7 do not take a foreign language. 6 student take foreign language and play sports. F.L.No F.L.Total Sport No Sport Total How many students take a foreign language and play no sports?