Population vs Sample / Sampling Methods

Front

Percentage of red cars in the Philippines. This statement describes a _____

Back

PARAMETER

Front

_______ is a part of a group being surveyed.

Back

Sample

Front

A student surveys mathematics teachers to get their opinion on teaching. What is the sample?

Back

All mathematics teachers in the school.

Front

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 50 blocks and survey all households on each selected block. This is an example of:

Back

Cluster Random Sample

Front

A teacher splits her classes up by period. She then randomly picks 3 students from each period to do a survey. This method is called:

Back

Stratified.

Front

What is the difference between a population and a sample?

Back

A population includes all members of a defined group, while a sample is a subset of the population.

Front

Define 'Simple Random Sample'.

Back

A sample where every member of the population has an equal chance of being selected.

Front

What is 'Stratified Sampling'?

Back

A sampling method where the population is divided into subgroups (strata) and random samples are taken from each stratum.

Front

What does 'Cluster Sampling' involve?

Back

Dividing the population into clusters and then randomly selecting entire clusters to survey.

Front

What is a 'Parameter' in statistics?

Back

A numerical value that summarizes a characteristic of a population.