Sampling Methods

A ___ is a large group that includes everything being studied.

• Sample
• Stratified Sampling Method
• Population
• Voluntary-Response

Tags

CCSS.HSS.IC.B.4

A ___ is a small portion of the population used to gather data from.

• Systematic Sampling Method
• Sample
• Population
• Bias

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Marianne wanted to know students' opinion on the new schedule at school. So she randomly selected 2 students from each class during second period. 
This is a form of:

• Convenience Sampling
• Random Sampling
• Stratified Sampling
• Systematic Sampling

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

Why do we randomly select our samples?

• to control every aspect
• reduce bias
• so we don't get the same answers from everyone
• because it is easier to do

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

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

• Convenience Sampling
• Systematic Sample
• Stratified Sample
• Random Sample

Marianne wanted to know students' opinion on the new schedule at school. She places students' names in a container and randomly picks out 20 names. 

• Stratified Sampling
• Systematic Sampling
• Random Sampling
• Volunteer response

Group businesses according to type: medical, retail, restaurant, hotel, other. Then select a random sample of 10 businesses from each type. 

• voluntary response
• random
• stratified
• systematic

Biased or Unbiased?
Carlos wants to know the favorite sport of people at his school so he asks his baseball team.

• Biased
• Unbiased

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A poll is taken from 100 seniors in a high school where the senior class has 575 students. The 100 seniors is an example of a  ______________.

• Sample
• Population

Political webpages often allow readers to rate 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
• Quantitative Data
• Stratified Random Sampling
• Systematic Sampling

Tags

CCSS.HSS.ID.B.5