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- 1. Multiple ChoiceInterview the first 30 students who enter the school in the morning.simple randomvoluntary responsesystematicconvenience
- 2. Multiple ChoiceAssign each car in a dealership a number and then use a random-number table to select the cars to be inspected.systematicrandom sampleconveniencevolunteer response
- 3. Multiple ChoiceMarianne wanted to know students' opinion on the new schedule at school. She places all students' names in a container and picks out 20 to survey.Convenience SamplingSystematic SamplingRandom SamplingVolunteer response
- 4. Multiple ChoiceWhy do we randomly select our samples?to increase biasto reduce biasso we don't get the same answers from everyonebecause it's easier
- 5. Multiple ChoiceDisneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.
This is a form of:Random SampleConvenience SamplingVoluntary ResponseSystematic Sampling - 6. Multiple ChoiceA teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She selects the first five who raise their hands.SystematicConvenienceVoluntary ResponseSimple Random - 7. Multiple ChoiceA teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She selects the five closest to her desk.simple randomVoluntary ResponseConvenienceSystematic Random - 8. Multiple ChoiceA teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She picks the student in every 5th seat.Simple RandomSystematic Randomvoluntary responseconvenience - 9. Multiple ChoiceLeslie wants to find out what show students watch the most. She surveyed the 9 youngest students in the elementary school. Is this sample of the students in the school likely to be representative?yesnoMr. Shinn, I have no idea!
- 10. Multiple Choice
Elise, a supermarket employee, approached 50 random customers and asked whether they would be willing to discuss what they like most about the store. She interviewed the 22 who said yes. Is this sample of the supermarket's customers likely to be biased?
yes
no
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