The correct answer is likely "Study Group Number and Period" since it describes how many students are in each study group within each period.
In the given two-way table, the variables are represented by the rows and columns. Let's break down the options:
1. Period Number and Study Group Number: This refers to the intersection of the rows and columns. In this case, it would be the 3rd period in Group 1, 3rd period in Group 2, 4th period in Group 1, and 4th period in Group 2.
2. Period Number and Group 1: This implies the breakdown of the period number with respect to Group 1. For example, 18 students from the 3rd period are in Group 1, and 15 students from the 4th period are in Group 1.
3. Study Group Number and Period 3: This corresponds to the breakdown of the study group numbers within the context of the 3rd period. For instance, 18 students from the 3rd period are in Group 1, and 14 students from the 3rd period are in Group 2.
4. Study Group Number and Total: This involves the total number of students in each study group. For instance, Group 1 has a total of 33 students, and Group 2 has a total of 31 students.
Based on the description provided, the correct answer is likely "Study Group Number and Period" since it describes how many students are in each study group within each period. Therefore, the variables are Study Group Number and Period.
The probable question may be:
"Mrs. Suyata assigned her third- and fourth-period math classes into two study groups. Which describes the variables in the two-way table?
A. period, number, and study
B. group number, period number, and group
C. Study, group number, and Period
D. Study, group number, and total "