AP Statistics: Sampling and Bias

Sam tested every 50th candy bar from the assembly line to make sure there were enough peanuts in each bar.  He found 15% did not have enough peanuts.  Which type of sampling did he use?

• Cluster
• Systematic
• Convenience
• Simple Random

Tags

CCSS.HSS.IC.B.3

Farmer Joe separates his apple tree farm into 10 regions.  He counts the number of apples produced in just one of the regions and uses that estimate to predict the number of apples produced on the whole farm.  This is _______ sampling.

• SRS
• Cluster
• Stratified
• Systematic

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

Farmer Joe randomly picks 25 trees using a random number generator to estimate the number of apples per tree. 

• SRS
• Stratified
• Cluster
• Systematic

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

CCSS.HSS.MD.B.6

When one examines the entire population instead of a subgroup of the population, this is called a ____________.

• Sampling
• Census
• Bias

A school psychologist wants to investigate student depression. She selects, at random, samples of 30 freshmen, 30 sophomores, 30 juniors, and 30 seniors to interview. Which of the following best describes the principal's sampling plan?

• A convenience sample

• A simple random sample

• A stratified random sample

• A cluster sample

• A systematic sample

Tags

CCSS.HSS.IC.B.3

Many colleges are moving toward coed dormitories. A Residential Life director plans to sample student attitudes toward this arrangement. He randomly selects three of the 12 dorms and sends a questionnaire to all residents living in them. Which of the following best describes the director’s sampling plan?

• A convenience sample

• A simple random sample

• A stratified sample

• A cluster sample

• A systematic sample

Tags

CCSS.HSS.IC.B.3

To evaluate their catering service with regard to culinary excellence, airline executives plan to pick a random passenger to start with and then survey every tenth passenger departing from a Beijing to San Francisco flight. Which of the following best describes the executives’ sampling plan?

• A convenience sample

• A simple random sample

• A stratified sample

• A cluster sample

• A systematic sample

Tags

CCSS.HSS.IC.B.3

Each student in the school is assigned a different number.  75 unique numbers are selected for the sample using a RDT.  This is what type of sampling design?

• Stratified
• SRS
• Cluster
• Convenience

Tags

CCSS.HSS.IC.B.3

Two departments are randomly selected.  Two teachers from each of those departments are randomly selected.  Each one of those teachers randomly selects 20 of their students to be part of the sample.  This is what type of sampling design?

• Cluster
• Stratified
• Systematic
• Multistage

Tags

CCSS.HSS.IC.B.3

The question about the theme for prom is posed during the morning announcements.  Students are asked to go to the main office between classes to give their answer to the question.  This is what type of sampling design? 

• Cluster
• Convenience
• Voluntary Response
• SRS

Tags

CCSS.HSS.IC.B.3