Question

a professor wants to randomly select 4 students to go to the board. she decides to randomly select the fourth student who enters the classroom and every seventh student after that. determine the students who will be going to the board. write down the student numbers.

the numbers of the students that will be going to the board are
(use a comma to separate answers as needed.)

Explanation:

Step1: Identify first student

First selected student: $4$

Step2: Find second student

Add 7 to first number: $4 + 7 = 11$

Step3: Find third student

Add 7 to second number: $11 + 7 = 18$

Step4: Find fourth student

Add 7 to third number: $18 + 7 = 25$

Answer:

4, 11, 18, 25