A popular brand of ice cream named after three friends is planning to introduce a new flavor. But they have each developed their own flavor and is asking their customers to decide which of the three flavors is introduced to the public. Ice cream lovers can log on to the company's Web site, or call a toll-free telephone number, and vote for their favorite flavor. This is an example of which of the following sampling techniques?

Question

nory · Answer

Wouldn't it be volunteer sampling, because you have to volunteer to be sampled? You have to go onto the website of your own will or call the telephone number.