Probability with Phone Numbers - Kelly Telzrow
Using a page from a phone book, students choose 50 phone numbers. The last two digits of each number are written in a table and then the numbers that are divisible by three are shaded. (To give more challenging practice with divisibility by three, you could have students record the last three or four digits of the phone number.) Using the completed table, students answer questions about experimental, theoretical, dependent, and independent probability. This makes a good homework assignment after students have had practice with the various types of probability. You may need to provide the phone book pages for students.