6.
A farmer who only sells produce to local residents in his town wishes to expand to a neighboring city. The farmer calls everyone in the phonebook with a last name starting with "S" in the neighboring city and asks them if they would be interested in buying the produce. 242 told the farmer that they would be interested, 576 said they would not be interested and 138 refused to answer. Which statement is true?
The survey sample includes current customers.
The population of the survey includes everyone the farmer called.
The population of the survey is all residents of the neighboring city whose phone number is listed.
The survey sample includes residents of the neighboring city whose phone number is listed.