Apublic opinion poll in virginia wants to determine whether registered voters in the state approve of a measure to ban smoking in all indoor restaurants in the interest of public health. the researchers select a simple random sample of 5 counties and then sample all registered voters from each selected county and ask whether they approve or disapprove of the measure. this is an example of:
a. a simple random sample
b. a multistage sample
c. a stratified sample.
d. a cluster sample
e. a systematic sample

C. A stratified sample.

Explanation:

Stratified sample: This is a type of sampling method used in the research method.

In stratified sampling, the experimenter or researcher divides a given population into different groups, named as strata. After diving the population into different groups, the researcher draws a probability sample from each group.

Advantage: Provides greater precision compared to a simple random sample of the same size.

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.

can you explain it better