Sampling and Population

Out of a group of 30 volunteers, 11 people are chosen to participate in a survey about the number of phone calls they make each week. What is the sample in this situation?

• The 11 people selected to participate

• The 19 people not selected to participate

• The 30 volunteers

• The people conducting the survey

During a middle school basketball game, every spectator placed his or her ticket stub into one of several containers. After the game, the coach chose four people to march in the victory parade. What is the sample in this situation?

• The basketball game spectators

• The four people to march in the victory parade

• The coach

• The ticket stubs

A local appliance store is reviewing the performances of its​ junior, mid-level, and senior sales associates over the past month. For which of these questions should the sales associates be considered as one population to find the​ answer?

• What is the mean sales per associate for each group?

• Who had the best customer service ratings of all associates?

• Which group of associates had the least combined sales?

• Which group of associates worked the most combined hours?

A group of students is studying the number of people who play an instrument in their school. They surveyed one out of every four people in their school. Identify the population.

• Everyone who plays an instrument in the world

• Everyone in their school who plays an instrument

• Everyone in their school

• Everyone in all schools

A health club manager wants to determine

whether the members would prefer a new

sauna or a new steam room. The club surveys

50 of its 600 members. What is the population of this study?

• The 600 club members

• The 50 members who are surveyed

• The health club manager

• Members who use the steam room

City Lake Waterpark has many attractions, one of which is the Super Slide. Are the people who ride the Super Slide the population, or a sample, of City Lake Waterpark?

• Population

• Sample

• Both population and sample

• Neither population nor sample

Guillermo randomly surveys 15 members of his community service group to gain ideas for the next community service project. What is the population of this study?

• Guillermo's entire community service group

• The 15 members who are surveyed

• The entire state Guillermo lives in

• Guillermo himself

Students at your middle school are surveyed about their favorite drink on the cafeteria menu. What vocabulary term describes 10 students sitting together at a table in the cafeteria? Type your one-word answer.

The mayor of Baltimore wants to know if residents will vote to build a new library. Which vocabulary term describes all town voters? Type your one-word answer.

A newspaper wants to identify a city's favorite museum. Which vocabulary term describes visitors at the science museum on Friday night?

• Sample

• Population

• Representative Sample

• Random Sample