Unit 1 Contents

Radio Favorites

Michael asked some fifth-grade students at his school about the type of music they play on their favorite radio stations. This is what he found:

1. How many students did Michael survey?
1. Is Type of Music a numerical or categorical variable? How can you tell?
2. Is Number of Students a numerical or categorical variable? How can you tell?
3. What was the most popular type of music?
4. You may want to organize your answers to this question in a table.
1. There are 100 fifth-grade students in Michael's school. Estimate how many fifth-graders like each type of music.
2. Describe how you used the data to make your estimate.
5. Describe a survey you would like to carry out. Tell what variables you would study and what values of those variables you would expect. For example, the variables Michael studied were Type of Music and Number of Students. The values for the type of music were classical, rhythm and blues, oldies, country and western, rock, and rap.