Unit 8 - Population and Sampling

Front

What is a population in statistics?

Back

The entire group studied in a statistical analysis.

Front

What is a sample in statistics?

Back

A part of the population being studied.

Front

How do you calculate the population proportion?

Back

Divide the number of individuals in a specific category by the total number of individuals in the population.

Front

What is the formula for population proportion if 30 out of 100 respondents drink 2 cups of coffee or less?

Back

Front

What is the best representation of a sample of the population?

Back

A selection of shoppers from different states.

Front

If 32 randomly picked people were asked if they rented or owned their home and 8 said they rented, what is the population proportion of homeowners?

Back

Front

What is the difference between a sample and a population?

Back

A sample is a subset of the population, while the population includes all individuals of interest.

Front

What is a random sample?

Back

A sample that is selected from the population in such a way that every individual has an equal chance of being chosen.

Front

What is the significance of sampling in statistics?

Back

Sampling allows researchers to make inferences about a population without surveying every individual.

Front

What is a biased sample?

Back

A sample that does not accurately represent the population, leading to skewed results.