Population vs Sample

Administrators at Riverview High School surveyed a random sample of 100 of their seniors to see how seniors at the school felt about the lunch offering at the school's cafeteria.

• The population is all high school seniors in the world; the sample is all of the seniors at Riverview High.

• The population is all students at Riverview High; the sample is all of the seniors at Riverview High.

• The population is all seniors at Riverview High; the sample is the 100 seniors surveyed.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A group of librarians are interested in the numbers of books and other media that patrons check out from their library. They examine the checkout records of 150 randomly selected adult patrons.

• The population is all adult patrons of the library; the sample is the 150 patrons selected.

• The population is all patrons of the library; the sample is the adult patrons of the library.

• The population is all patrons who check out at least 111 book from the library; the sample is the 150 patrons selected.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

Lucio wants to know whether the food he serves in his restaurant are within a safe range of temperatures. He randomly selects 70 entrees and measures their temperatures just before he serves them to his customers.

• The population is all of the hot entrees Lucio serves; the sample is the entrees that are a safe temperature.

• The population is the 70 selected entrees; the sample is the entrees that are a safe temperature.

• The population is all of the entrees Lucio serves; the sample is the 70 selected entrees.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

A quality control engineer is curious about the thickness of paint on a car at her factory. She randomly selects 30 points on the car and measures the paint thickness at each of those points.

• The population is every possible point on the car; the sample is the 30 selected points.

• The population is every car at the factory; the sample is the 1 car she is curious about.

• The population is every car at the factory; the sample is the 30 selected points.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

A pediatrician randomly selected 10 parents of his patients. Then he surveyed the parents about their opinions of different kinds of diapers.

• The population is the parents of the pediatrician's patients who wear diapers; the sample is the parents of all of the pediatrician's patients.

• The population is the pediatrician's patients; the sample is the 10 patients selected.

• The population is the parents of the pediatrician's patients; the sample is the 10 parents of patients selected

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3