
Population Samples and Bias
Authored by Anthony Clark
Mathematics
7th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
River Bluff High School has a student population of 3020. In a sample of 250 students, 170 of them were female athletes. Approximately how many students in the entire population should be female athletes?
170
205
2,054
2,770
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This target depicts what?
Low bias, low variability
High bias, low variability
Low bias, high variability
High bias, high variability
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This target depicts
High bias, high variability
High bias, low variability
Low bias, low variability
Low bias, high variability
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The parameter is a number describing the:
population
sample
survey
percent
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Poll on women’s issues interviewed 1025 women randomly selected from the United States. One question was “Many women have better jobs and more opportunities than they did 20 years ago. Do you think women had to give up too much in the process, or not?” Forty-eight percent of women in the sample said “Yes.” Why can't we just say that 48% of women felt they gave up too much?
Not all samples would result in 48%
The margin of error might change.
The confidence interval might change
This was a biased survey.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A newspaper asks its readers to call in and answer the following question, "Are young adults unprepared for college?" What type of sample is this?
Convenience Sample
Random Sample
Voluntary Response Sample
Call in sample
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When a sample does not accurately represent the population it is a:
Unbiased sample
Biased sample
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