Identify the sampling designs that use convenience sampling. Check all that apply. Mr. Berkman asks all his third-period students about music preferences.

Each customer of a sandwich shop is interviewed about their customer satisfaction as they exit.

An online poll about voter opinion of political issues is posted on social media.

A student organization interviews students in a lunch line about cafeteria meals.

Fifteen percent of families in the county are randomly chosen to respond to a survey about emergency services.

The management employees of a company, which has locations throughout the country, are asked about job satisfaction.