17. Tell whether this survey describes a good sample and if so, name the method of sampling used. Every sixth person leaving a restaurant is surveyed to determine their favorite food from the menu.

yes, random********
yes, systematic
yes, stratified
not a good sample

18.Tell whether this survey describes a good sample and if so, name the method of sampling used. Have listeners call in to a radio station to find out if they prefer country or classical music.

yes, random
yes, systematic
yes, stratified
not a good sample***********

agree on both.

For question 17, the survey describes a good sample and the sampling method used is systematic. This is because every sixth person leaving the restaurant is selected for the survey, providing a systematic and consistent approach.

For question 18, the survey does not describe a good sample. The sampling method used is not mentioned, but it appears to be a convenience sample, where listeners who choose to call in are surveyed. This type of sampling can introduce bias and does not represent the entire population, making it not a good sample for accurate insights or generalizations.