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.

Questions 9-10. use the table of educational expenditures to answer the questions. k-12 education expenditures population indiana $9.97 billion 6.6 million illinois $28.54 billion 12.9 million kentucky $6.58 billion 4.4 million michigan $16.85 billion 9.9 million ohio $20.23 billion 11.6million 9. if the amount of k-12 education expenses in indiana were proportional to those in ohio, what would have been the expected value of k-12 expenditures in indiana? (give the answer in billions rounded to the nearest hundredth) 10. use the value of k-12 education expenditures in michigan as a proportion of the population in michigan to estimate what the value of k-12 education expenses would be in illinois. a) find the expected value of k-12 expenditures in illinois if illinois were proportional to michigan. (give the answer in billions rounded to the nearest hundredth) b) how does this compare to the actual value for k-12 expenditures in illinois? (lower, higher, same? )