Gathering Data

Which method is most likely to produce a random sample of the members of your class? 

• listing the first six students that come to mind 
• choosing the five oldest students in the class
• writing the name of each student on a separate piece of paper and then drawing these slips from a hat 
• selecting the first six students to arrive at class 

Scotland is considering independence from England. An opinion poll showed that 51% of Scots favor "independence." Another poll taken at the same time showed that only 34% favored being "separate" from England. The reason these results differ by so much is that...

• samples will usually differ just by chance due to random sampling
• the wording of questions has a big effect on poll results
• more follow-up efforts reduced the nonresponse rate of the second poll
• the second poll suffered from undercoverage

Ms. Evans samples her class by selecting every third person on her class list.  Which type of sampling method is this?

• Simple
• Systematic
• Stratified
• Cluster

Ms. Reynolds 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

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

• Stratified
• Systematic
• Simple
• Cluster

Farmer Joe randomly picks 100 trees using a random number generator to estimate the number of apples produced by his apple trees.  This is ______________ sampling.

• Simple
• Stratified
• Cluster
• Systematic

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

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

Dylan asked his school's basketball team to rate the school cafeteria. Is this a biased sample of the school's population?

• Yes, because it is a convenience survey
• No, the basketball team has the smartest students
• Yes, because it's voluntary survey
• No, he should have asked the football team

A student wants to determine the favorite professional sport of students in her high school.  Which of the following samples is most likely to giver her a representative sample?

• A random Sample of the students in the art honor society
• A random sample of students on the basketball team
• A random sample of students on the official school enrollment roster
• A random sample of students in the library during lunch

To study the amount of time students spend doing homework each day, use a random number generator to select 25 freshmen, 25 sophomores, 25 juniors, and 25 seniors to survey.

• Convenience Sample
• Simple Random Sample
• Stratified Random Sample
• Interval Sample