Debbie polled the first 237 consumers to use a new type of vacuum. Is this sample of the consumers trying the new vacuum likely to be biased?
Yes
Miss McMillan wanted to pick a movie for her students to watch on Friday Fun Day, so she put a list of potential movies next to the classroom door. Of all her students, 13 decided to vote. Is this sample representative?
No
Camille experimented with 2 exercises from each class offered at her gym. Each class has an equal number of exercises. Is this sample of the exercises at the gym likely to be representative?
Yes
Braden asked 5 of his friends what they thought about a new movie. Is this sample of the students in the school likely to be biased?
Yes
Gavin met 17 students in each class at his school. Each class has an equal number of students. Is this sample of the students of the school likely to be biased?
No
Layla polled the last 87 athletes to finish a bike race. Is this sample of the athletes in the bike race likely to be biased?
Yes
Samuel surveyed the 33 healthiest patients in the hospital. Is this sample of the patients in the hospital likely to be representative?
No
Without looking, Fred took 17 coins out of a jar of equal-valued coins. Is this a random sample of the coins in the jar?
Yes
Omar tasted 13 desserts from each bakery in his county. Each bakery has an equal number of desserts. Is this sample of the desserts from the county's bakeries likely to be biased?
No
Colin threw a handful of identically shaped buttons into the air, then collected the 12 buttons that landed on the carpet. Is this a random sample of the buttons?
Yes
Kendrick surveyed the first 35 students in the lunch line. Is this a random sample of the students in the school?
No
Judy surveyed the 219 employees at the company who worked in Marketing. Is this sample of the employees at the company in general likely to be representative?
No
Aiden polled 691 drivers late on a Friday night. Is this a random sample of the drivers in the city?
no
Janice surveyed the 87 top-ranking students in the high school. Is this sample of the students in the school likely to be biased?
Yes
While designing a new dessert menu, the manager of a restaurant offered customers a coupon in exchange for completing a brief survey about their favorite desserts. 15 of the customers accepted the offer. Is this a random sample?
No
Shelley threw some printed pages into the air and grabbed 2 as they fell. Is this sample of the printed pages likely to be representative?
Yes
Joseph put some business cards into a basket. Then, he drew 7 business cards out of the basket. Is this sample of the business cards in the basket likely to be biased?
No
The librarian interviewed the 477 patrons who spent the most time at the library last year. Is this a random sample of the library patrons?
No
Estelle polled the 12 customers who had been going to a particular barbershop the longest. Is this sample of the customers at the barbershop likely to be representative?
No
Hector questioned 12 violinists in the national orchestra. Is this sample of violinists in general likely to be representative?
No
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