6.3 - Sampling Techniques and Randomization

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

• Systematic Sampling Method
• Sample
• Population
• Bias

Tags

CCSS.RI.11-12.4

CCSS.RI.7.4

CCSS.RI.8.4

CCSS.RI.9-10.4

CCSS.RI.9-10.4

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. 

• Convenience Sampling
• Systematic Random Sampling
• Simple Random Sampling
• Volunteer response

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Source of bias that occurs when you ask people who are EASY to ask

• Response Bias
• Convenience Sampling
• Nonresponse
• Voluntary Response

Tags

CCSS.RL.11-12.6

True or False:

Samples are used to reduce bias.

• True

• False

Why do we RANDOMLY select our samples?

• for control

• to reduce bias

• so we don't get the same answers from everyone

• to eliminate confounding results

Source of bias in which people CHOOSE to respond and usually only people with very strong opinions respond

• Convenience Sampling

• Voluntary Response

Source of bias in which some groups of populations are LEFT OUT of the selection process

• Response Bias
• Undercoverage
• Convenience Sampling
• Voluntary Response

Tags

CCSS.7.SP.A.1

Which is not a method of random selection?

• Using a table of random digits

• Using a random number generator

• Drawing numbers out of a hat

• Randomly pointing to numbers on a page

Tags

CCSS.HSS.MD.B.6

The teacher samples her class by selecting all students sitting at group 1 and group 5 in her classroom.  This sampling technique is called?

• SRS

  (Simple Random Sample)

• Stratified
• Systematic
• Cluster

At a middle school, the 7th graders will conduct a survey for where to go on a field trip. Which method will result in the least biased decision?

• to randomly ask 8th grade students who went on a field trip last year
• to randomly choose some 7th grade students to select a location
• to ask all 7th grade teachers and administrators for a location
• to ask the student council to choose a location

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3