Sampling Methods

A high school principal wanted to investigate teachers' opinions on a plan to improve school spirit. The principal randomly selected 3 teachers from each department (math, English, world language, etc.) at the school and asked them to complete a survey. Which of the following best describes the principal's sampling plan?

• Cluster

• Convenience

• Simple Random

• Stratified Random

Tags

CCSS.HSS.IC.B.3

A researcher for a beverage company would like to test market a new carbonated soft drink. She believes that age might affect the preference for this drink. The researcher divides the population into four age categories and then takes a random sample from each of the age groups. This is an example of...

• Systematic sampling

• Stratified sampling

• Cluster sampling

• Multi-stage sampling.

Tags

CCSS.HSS.IC.B.3

A convenience sample...

• is a type of simple random sample.

• Usually does a poor job of representing the characteristics of the population.

• deals with people choosing to respond to the question.

• often divides up different parts of the population by various strata.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A researcher wanted to determine the average age of children who visit the Easter Bunny at a local mall. To gather data, the Easter Bunny's helpers asked and recorded the age of every 10th child who came to visit the Easter Bunny over a period of several days. What type of sample was the researcher using?

• Convenience sample

• Simple random sample

• Stratified random sample

• Systematic random sample

Tags

CCSS.HSS.IC.B.3

After noticing that you are lacking in extracurriculars, you decide to run for class president. Being the statistician that you are, you decide to do some polling before deciding what issues to run on. You stand by the Media Center during 4th period and survey every student who walks by. What type of survey did you just administer?

• Convenience

• Simple Random

• Stratified

• Cluster

• Systematic

Tags

CCSS.HSS.IC.B.3

A town committee is thinking about investing $200,000 for lighting the baseball and softball fields. The first selectman of the town wants to survey 500 citizens of the town to see what they think. Which of the following will produce a simple random sample?

• Surveying every fourth citizen who walks by the town hall.

• Randomly selecting 500 citizens from the local phone directory.

• Using the latest census data from the town, numbering the citizens, and using a random number generator to select 500 citizens.

• Separate by age groups using the latest census data from the community. Randomly select 2 age groups and randomly survey 250 citizens from both age groups.

Tags

CCSS.HSS.IC.B.3

A vice principal wanted to investigate student opinion about a possible change in the high school schedule for the upcoming school year. The vice principal selected random samples of 30 freshmen, 30 sophomores, 30 juniors, and 30 seniors to get their input about the possible change. Which of the following best describes the vice principal's sampling plan?

• a convenience sample

• a cluster sample

• a stratified random sample

• a systematic sample

Tags

CCSS.HSS.IC.B.3

A large company wants to conduct a survey to determine the proportion of its female employees who practice self-defense on a daily basis. 4 of its regional offices are randomly selected and all of the women in those offices are surveyed. This plan is an example of which type of sampling?

• A convenience sample

• A cluster sample

• A stratified random sample

• A systematic sample

Tags

CCSS.HSS.IC.B.3

A pollster hopes to determine the support distribution for three different mayoral candidates in a large city. If a stratified sample is used, which of the following could the pollster do?

I. Randomly divide the subjects into 3 groups and then poll each group.

II. Divide the subjects into groups by race and then poll within each group.

III. Divide the subjects into groups by gender and then poll within each group.

• I only

• II only

• I and II only

• II and III only

Tags

CCSS.HSS.IC.B.3

A pollster wants to determine the support of a congressional candidate in a certain district. The pollster selects 12 counties the district represents then randomly selects 10 towns in each of the 12 counties. Finally, he randomly selects 10 subjects in each town for a total of 1,200 respondents in his sample. What type of sample best describes this situation?

• Simple random sample

• Stratified sample

• Multistage sample

• Cluster sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1