3.2 Sampling Good and Bad

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

• Response Bias
• Undercoverage
• Convenience Sampling
• Voluntary Response

Tags

CCSS.HSS.IC.B.3

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

• Response Bias
• Convenience Sampling
• Nonresponse
• Voluntary Response

Tags

CCSS.HSS.IC.B.3

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.B.3

Why do we randomly select our samples?

• for control
• reduce bias
• so we don't get the same answers from everyone
• to eliminate confounding results

Tags

CCSS.HSS.IC.B.3

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.7.SP.A.1

CCSS.HSS.IC.A.1

Starting at 8:00 Monday morning the first 50 students entering the front doors are selected to be in the sample.  This is what type of sampling design? 

• Systematic
• Voluntary Response
• Cluster
• Convenience

Tags

CCSS.HSS.IC.B.3

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.IC.B.3

The set of ALL observations made on all objects under study for a given characteristic or variable.

• Sample
• Population
• Survey
• Parameter

Tags

CCSS.HSS.IC.B.3

A set of observations that constitute PART of the population.

• Statistic
• Census
• Population
• Sample

Tags

CCSS.HSS.IC.B.3

The process of gathering information/data from EACH member of the population.

• Census
• Interview
• Survey
• Questionnaire

Tags

CCSS.6.SP.B.5A