Using sampling concepts, it is found that the correct option is:
b. The 9000 registered voters from California in the database.
Example of sampling, involving sample and population:
I survey 1000 randomly selected residents of New York State, asking if they are Buffalo Bills fans or not.
- The sample is the 1000 residents surveyed.
- The population is all New York State residents, as it is the pool with all available options to be sampled.
In this problem, 1000 registered voters in California are randomly selected from the database and asked their opinion, hence:
- The 1000 voters are the sample.
- The pool with all available options to be sampled is the 9000 registered voters in California from the database, hence, it is the population, and option b is correct.
A similar problem is given at https://brainly.com/question/13852073