
Bias Unbiased Samples
Authored by Anthony Clark
Mathematics
7th Grade

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16 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When a sample does not accurately represent the population it is a:
A. Unbiased sample
B. Biased sample
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Biased or Unbiased?
John wants to find out what the favorite soda flavor is at Menifee County. He decides to ask all the students in Mr. Goldsmith's class as a sample group.
Biased
Unbiased
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Biased or Unbiased?
Reign wants to determine the most popular brand of cereal in all of Kentucky. So he polls all the houses on his street to get a sample.
Biased
Unbiased
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Biased or Unbiased?
Audi wants to find out how students get to school at Menifee Elementary so she places the names of all students into a fish bowl and pulls out 50 so she can survey them.
Biased
Unbiased
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Shelley wants to survey grocery shoppers about their favorite brands. She goes to the store at 8am and surveys the first 50 people. Is this a biased sample or unbiased sample?
Biased Sample
Unbiased Sample
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Casey surveyed the members of his soccer team to ask them what their favorite sport is. Is this a biased sample or unbiased sample?
Biased Sample
Unbiased Sample
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The Student Council asked every tenth student in the lunch line how they preferred to be contacted with school news. The results are shown in the table. Is this an unbiased sample? If yes, suppose there are 684 students at the school. How many can be expected to prefer E-mail?
No, it's a biased sample
432
304
16
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