Sampling

_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Sample

• Population

• Random Sample

• inference

Tags

CCSS.HSS.IC.B.3

Darrien surveys 60 of the actors theater class. He concludes that 8 out of 15 actors have previous acting experience. What is the sample size?

• 60
• 8
• 15
• 53

Every member of the larger group has an equal chance of being chosen.

• secondary sample
• systematic sample
• stratified sample
• random sample

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

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

This sample consists of units of the population that are easily accessible.

• Cluster
• Convenience
• Volunteer
• Observational

In order to use samples to estimate something from the population, the sample should be _________________ the population.

• exactly the same as
• nothing like
• representative of
• larger than

Which survey question is the most fair to ask in a survey?

• Which do you prefer, apples or oranges?

• Don't you prefer apples to oranges?

• Do you prefer apples, like I do, or oranges?

• Which do you like better, delicious apples or boring oranges?

Tags

CCSS.1.MD.C.4

Mrs. Trahan samples her class by selecting 5 girls and 7 boys.  This type of sampling is called?

• Stratified
• Systematic
• Simple
• Cluster

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

• Simple
• Stratified
• Systematic
• Cluster