GIVEN:
We are given the following;
You write for your school newspaper. You want to survey students to find out what new food the cafeteria should offer for lunches. There are 911 students in your high school.
Required;
Describe a method for selecting a random sample of 25 students.
Step-by-step explanation;
To determine what new food the cafetaria should offer, you will attemot as much as possible to represent the entire student population without having to survey every single member.
A good method would be to assign a number to every member of the population, that is, numbers 001 to 911.
You would now need to identify how many groups of 25 there are in the entire population and that is approximately 36.
Next step is to begin sampling the students from number 001 and then take every 36th person in the entire population. For example, your sample would now be made up the following students;
Student number 001
Student number 037
Student number 073
Student number 109
and so on.
That way you would be using a Systematic sampling technique. This ensures that every member of the population stands an equal chance of being represented regardless of age, gender, race, social status, food preference and so on.
ANSWER:
Systematic Sampling Technique