Which sample fairly represents the population? Check all that apply.

using a yearbook to determine the most popular names for girls in the United States

asking the people exiting a vitamin store how often they exercise to determine the amount of time the average American exercises

calling every registered member of the national Republican Party to determine the voter turnout for a city’s mayoral race

sending a mandatory and confidential e-mail survey to every tenth employee of a company to determine overall job satisfaction

Question

Which sample fairly represents the population? Check all that apply.

using a yearbook to determine the most popular names for girls in the United States


asking the people exiting a vitamin store how often they exercise to determine the amount of time the average American exercises


calling every registered member of the national Republican Party to determine the voter turnout for a city’s mayoral race


sending a mandatory and confidential e-mail survey to every tenth employee of a company to determine overall job satisfaction

emily_98 · Answer

taking a poll in the main hallway between classes to determine the number of students who would be interested in a school trip to New York City

anonymous · Answer

At first I thought a year book wouldn't have a good enough sample size, but it could when I rethink it.  

Number 2 uses systematic seletion, so that's fine.  However, a vitimin store might include people who tend to exersice more - so that' questionable.

Number 3 only includes republicians, so no to that.   

Number 5 does the same as number 2.

Number 6 is fine also.