Question

which sample fairly represents the population? select two options. 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 citys mayoral race sending a mandatory and confidential e-mail survey to every tenth employee of a company to determine overall job satisfaction 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

Explanation:

• A yearbook may not cover all girls in the US (limited scope).
• People exiting a vitamin store are a non - representative sample for average American exercise (biased towards health - conscious).
• Calling only Republican Party members is biased for city mayoral race voter turnout (not representative of all voters).
• Sending a survey to every tenth employee (systematic sampling, can be representative if done right).
• Polling in the main hallway between classes (if it's a diverse group of students, can be representative for student interest in school trip).

Answer:

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