at the beginning of a call to the cable company, a message tells customers, “after you finish talking to our…

at the beginning of a call to the cable company, a message tells customers, “after you finish talking to our customer service representative, you will be asked to take a five - question survey about the level of service you received. it would be appreciated if you could please stay on the line to answer the survey questions.” what type of sampling is the cable company using?\no systematic random sampling\no voluntary sampling\no cluster sampling\no convenience sampling
Answer
Answer:
voluntary sampling
Brief Explanations:
Customers are asked to voluntarily stay on - line for the survey, which is characteristic of voluntary sampling where individuals decide on their own whether to participate in the sample.