Questions: Question 14
3 pts
Identify the type of sampling used.
Diana would like to know what percentage of SAC students have taken English 101, so she stands in front of the campus bookstore and asks every 10 th student that walks out to answer a survey about whether or not they taken the course. What sampling technique is used?
systematic
stratified
simple random
cluster
convenience
Transcript text: Question 14
3 pts
Identify the type of sampling used.
Diana would like to know what percentage of SAC students have taken English 101, so she stands in front of the campus bookstore and asks every 10 th student that walks out to answer a survey about whether or not they taken the course. What sampling technique is used?
systematic
stratified
simple random
cluster
convenience
Solution
Solution Steps
To determine the type of sampling used, we need to analyze the method Diana used to select participants. She asks every 10th student, which indicates a systematic approach, as she follows a fixed interval to select her sample.
Step 1: Identify the Sampling Technique
Diana's method of selecting participants involves asking every 10th student who exits the campus bookstore. This approach follows a fixed interval, which is characteristic of systematic sampling. In systematic sampling, a starting point is chosen at random, and then every \( k \)-th individual is selected from the population, where \( k \) is a constant (in this case, \( k = 10 \)).
Step 2: Confirm the Characteristics of Systematic Sampling
In systematic sampling, each member of the population does not have an equal chance of being selected, as the selection is based on a predetermined interval. This differentiates it from simple random sampling, where every individual has an equal probability of being chosen.
Final Answer
The sampling technique used by Diana is systematic sampling. Thus, the answer is \\(\boxed{\text{systematic}}\\).