Biased Sampling
Authored by Jill Stoltzfoos
Mathematics
7th Grade
CCSS covered
Used 951+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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
Tags
CCSS.HSS.IC.A.1
CCSS.HSS.IC.B.3
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A real estate agent surveys people about their housing preferences at an open house for a luxury townhouse.
Biased Sample
Unbiased Sample
Tags
CCSS.HSS.IC.A.1
CCSS.HSS.IC.B.3
CCSS.HSS.IC.B.4
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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
Tags
CCSS.7.SP.A.1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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
Tags
CCSS.HSS.IC.A.1
CCSS.HSS.IC.B.3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To determine how often people eat out, every tenth person entering a Chinese restaurant is surveyed.
Biased Sample
Unbiased Sample
Tags
CCSS.HSS.IC.B.3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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
Tags
CCSS.HSS.IC.A.1
CCSS.HSS.IC.B.3
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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
Tags
CCSS.HSS.IC.A.1
CCSS.HSS.IC.B.3
CCSS.HSS.IC.B.4
CCSS.HSS.IC.A.2
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