Population and sampling

Front

A _________ consists of all subjects (human or otherwise) that are being studied.

Back

Population

Front

A _______ is a subset of a population

Back

sample

Front

A survey of 1353 American households found that 18% of the households own a computer. Is this a population or a sample?

Back

Sample

Front

Population or Sample? A recent survey of 2625 elementary school children found that 28% of the children could be classified obese.

Back

Sample

Front

The average weight of every person entering the mall within a 3-hour period was 146 lb. Is this a population or a sample?

Back

Population

Front

Population or Sample? A factory overseer selects 40 threaded rods at random from those produced that week at the factory, then she tests their tensile strength.

Back

Sample

Front

Population or Sample? 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.

Back

Sample

Front

All of the teachers in a school are surveyed on their meeting time preferences. Is this a population or a sample?

Back

Population

Front

Every fifth customer exiting a restaurant is surveyed on how well they liked the food. Population or Sample?

Back

Sample

Front

A police officer measures the speed of all the cars that pass a specific point on the road during his shift. Population or Sample?

Back

Population