researchers call random radio listeners on the phone to rank five different popular songs. this research…
researchers call random radio listeners on the phone to rank five different popular songs. this research helps radio stations decide which songs to play more often. this method of gathering data is classified as\na census.\na sample survey.\nan experiment.\nan observational study.
Answer
Brief Explanations:
A census involves collecting data from an entire population. Here, only random radio - listeners are called, not the entire population of radio - listeners, so it's not a census. An experiment involves manipulating variables and observing the effects, which is not the case here. An observational study just observes without asking for rankings. In this case, researchers are asking a sample (random radio - listeners) to rank songs, which is characteristic of a sample survey.
Answer:
B. a sample survey