Identify the sampling,method.
You want to determine the number of text messages students at your school send in a month. You go to the cafeteria and ask every 4th student that walks in.
a- random
b- systemic
c- stratified
d-m none of these
My answer is none of the these because it's biased for only students that used the cafeteria.
You're correct, the sampling method described in this scenario is not represented by any of the options provided. The method of asking every 4th student that walks into the cafeteria is known as convenience sampling. Convenience sampling occurs when individuals are selected for a study because they are easily accessible or convenient to reach.
While this approach is quick and convenient, it would likely introduce some bias into the results. As you mentioned, the sample would not be representative of the entire student population but only of those who use the cafeteria. This could potentially lead to inaccurate conclusions about the overall number of text messages sent by students at the school.
To obtain a more representative sample, a better method would be to use a random sampling technique. This could involve assigning each student a number and using a random number generator to select a sample of students from the entire school population. This way, every student would have an equal chance of being selected, providing a more unbiased and accurate representation of the text message usage.