An art teacher recorded whether the students in three of her classes prefer water color or oil painting. The art teacher plans to create a two-way table to analyze her results. Which variables can the art teacher use as the row and column headings of the table?
Answer
A
painting preference and total number of students
B
class number and painting preference
C
painting preference and number of students in class 1
D
class number and number who prefer oil
Explanation
A two-way table uses two categorical variables to group the data. Here, the variables are which class a student is in and whether the student prefers watercolor or oil painting. Therefore, the row and column headings can be class number and painting preference.
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