Previous Next HighlighterHighlighter NotesNotes
Yellow
Green
Blue
Red
Magenta
Remove

Blanca and Irma did their survey. They studied the kinds of shoes the students in their class wore the first day of school. This is what they found:

    1. Do you think Blanca's data will help convince her mother that flats are okay for school? Why or why not?
    2. Would a graph help? If so, how?
  2. What is the most common kind of shoe in Blanca's class?
  3. If you surveyed your class, how do you think the data would compare with Blanca's?
  4. What kind of shoes do you think are most popular in your school?
Variables are things that change or vary in an experiment or survey. The two main variables in Blanca and Irma's survey are Kind of Shoe and Number of Pairs of Shoes. The kinds of shoes vary from gym shoes to flip-flops.
The possible outcomes for each variable are called values. Gym Shoes, Lace-Up Boots, and all the kinds of shoes listed in the first column of the data table are values of the variable Kind of Shoe. The number of pairs of shoes varied from 2 to 9 pairs. We can say that 2, 4, 5, 7, and 9 are values of the variable Number of Pairs of Shoes.