Sampling Method

A sound engineer wants to test the audio quality in an auditorium at various distances from the on-stage speakers. She assigns each seat in the auditorium a number and uses a random number generator to select 20 seats at random, then surveys audience members in these seats. This is an example of a

• simple random sample

• voluntary response sample

• systematic random sample

• stratified random sample

• cluster sample

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.MD.B.6

A sound engineer wants to test the audio quality in an auditorium at various distances from the on-stage speakers. She selects four columns of seats at random and surveys all audience members in these columns. This is an example of a

• simple random sample

• voluntary response sample

• systematic random sample

• stratified random sample

• cluster sample

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A sound engineer wants to test the audio quality in an auditorium at various distances from the on-stage speakers. She selects two seats at random from each row and surveys audience members in those seats. This is an example of a

• simple random sample

• voluntary response sample

• systematic random sample

• stratified random sample

• cluster sample

Tags

CCSS.HSS.IC.B.3

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected.

• systematic

• simple random sample

• convenience

• voluntary response

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.MD.B.6

Political webpages often allow readers to rate (if they want to) whether they strongly agree, agree, disagree, or strongly disagree with the President's decision on any given situation. This is a form of:

• Voluntary Response Sampling

• Convenience Sampling

• Simple Random Sampling

• Systematic Random Sampling

Tags

CCSS.HSS.IC.B.3

Interview every 10th student who enters the school in the morning.

• simple random

• voluntary response

• systematic

• convenience

• cluster

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.

She selects the first five who raise their hands.

• Systematic

• Convenience

• Voluntary Response

• Simple Random

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.

She selects the five closest to her desk.

• simple random

• Self Selected.

• Convenience

• Systematic Random

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.

She picks the student in every 5th seat.

• Simple Random

• Systematic

• voluntary response

• convenience

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.

This is a form of:

• Simple Random Sample

• Stratified Random Sample

• Voluntary Response

• Systematic Random Sampling

• Cluster Sample