Question

each law firm in one state registers its phone number with the state court system. an employee of the state court system uses a computer to select 500 random registered phone numbers, and the law firms associated with those numbers will be selected for an audit. what type of sample is this? choose 1 answer: a simple random sample b stratified random sample c cluster random sample d systematic random sample e none of the above

Explanation:

In a simple random sample, every member of the population has an equal chance of being selected. Here, 500 phone - numbers are randomly chosen from all registered phone numbers of law firms, and each phone number (and thus each law firm) has an equal probability of being selected. There is no stratification, clustering, or systematic pattern in the selection process.

Answer:

A. Simple random sample