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- 1. Multiple Choice
To determine if my students like Math, I surveyed every 3rd student that walked into my classroom. This is an example of a ...
simple random sample
systematic random sample
convenience sample
voluntary response sample
- 2. Multiple Choice
To determine how many students at Shull would attend the dance, the principal surveyed the students in Ms. Miller's math class. 10 students said they would attend and 15 said they would not attend. It can be concluded that half the students at Shull will attend the dance. Is this conclusion valid? Why or why not?
Yes, this is a simple random sample. So the sample is unbiased.
No, this is a convenience sample. So the sample is unbiased.
No, this is a voluntary response sample. So the sample is biased.
No, this is a convenience sample. So the sample is biased.
- 3. Multiple ChoiceDetermine if the conclusion is valid.
To determine whether the students will attend an arts festival at the school, Oliver surveys his friends in the art club. All of Oliver's friends plan to attend. So, Oliver assumes that all of the students at his school will also attend.The conclusion is validThe conclusion is not valid - 4. Multiple ChoiceThe student councel advisor asked every 10th student in the lunch line how they prefer to be contacted with school news. Will his sample method be more likely to give valid or invalid results?ValidInvalidI don't know
- 5. Multiple ChoiceThe student councel advisor asked every 10th student in the lunch line how they prefer to be contacted with school news. What type of sampling method was used in this situation?Simple Random SampleSystematic Random SampleConvenience SampleVoluntary Response Sample
- 6. Multiple ChoiceAt her field hockey practice, Janet surveyed the athletes on the girls' hockey team to determine which sports teenagers like best. Which type of sampling method was used?Simple Random SampleSystematic Random SampleConvenience SampleVoluntary Response
- 7. Multiple ChoiceTime Magazine wants to know which topics their readers prefer. The magazine editors decide to put a survey in their magazine and asks readers to fill it out and send it back. Is this sampling method likely to produce valid or invalid data?ValidInvalidI don't know
- 8. Multiple ChoiceTime Magazine wants to know which topics their readers prefer. The magazine editors decide to put a survey in their magazine and asks readers to fill it out and send it back. Which sampling method is being used?Simple Random SampleSystematic Random SampleConvenience SampleVoluntary Response Sample
- 9. Multiple Choice2. A homeowner divides their backyard into 5 sections, and randomly removes soil from sections.BiasedUnbiased
- 10. Multiple Choice1. Carlos wants to know the favorite sport of people at his school so he asks his baseball team.BiasedUnbiased
- 11. Multiple Choice10. A senator wants to how she is doing. She sends a survey to 1000 registered voters in her partyBiasedUnbiased
- 12. Multiple ChoiceA company makes DVDs and randomly selects 25 from 1500 to test them to see if they work.BiasedUnbiased
- 13. Multiple Choice
Natalie wants to find out the names of high school students' favorite movies. Which of the following would be the best population for Natalie to survey?
Adults ages 35 to 45 years that have high-school-age children
Boys that go to the local mall on Saturday morning
Twelfth-grade students that will graduate from high school in one week
Girls and boys entering the cafeteria for lunch at a high school on Tuesday
- 14. Multiple Choice
To evaluate the defect rate of its memory chips, an integrated circuit manufacturer tests every 100th chip off the production line.
Biased Sample
Unbiased Sample
- 15. Multiple Choice
To determine the most popular children’s programs, a television station asks parents to call in and complete a phone survey.
Biased Sample
Unbiased Sample
- 16. Multiple Choice
Airline boarding passes are marked with red stars at random to decide which passengers should have their carry-on luggage inspected.
Biased Sample
Unbiased Sample
- 17. Multiple Choice
To determine the most common injury cared for in an emergency room, a reporter goes to the same hospital every afternoon for one month during the summer and observes people entering the emergency room. She concludes that second degree sunburn is the most common injury.
Unbiased
Biased
- 18. Multiple Choice
To evaluate customer satisfaction, a grocery store gives double coupons to anyone who completes a survey as they enter the store. The store manager determines that customers are very satisfied with their shopping experience in his store.
Unbiased
Biased
- 19. Multiple ChoiceA student wants to know which type of pizza the students at his high school prefer. Which option would give a unbiased, representative sample:Asking all the students in the hot lunch line.Asking 10 random students from each homeroom.Asking every other student who gets off a school bus.Asking all the 10th graders.
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