Question

A television station plans to send a crew to a polling center on an election day. because they do not have time to interview each individual voter, they group voters by race. next , they select several of these groups by using a lottery and ask every voter, from the selected groups, for an interview. what type of sampling is this? select the correct answer below: simple random sampling cluster sampling stratified sampling systematic sampling convenience sampling

Answer 1

The television station is employing cluster sampling where they first divide the population into groups by race and then randomly select several groups for interviews.

Step-by-step explanation:

The type of sampling described in the question is cluster sampling. this is seen when the television station groups voters by race and then selects several groups using a lottery system to interview every voter from the selected groups. This is different from stratified sampling, where within each stratum, individuals would be randomly selected, or from simple random sampling, where every individual in the population has an equal chance of being selected.

Convenience sampling, on the other hand, relies on ease of access, and the station is clearly going beyond convenience by organizing a lottery system to choose among different racial groups.