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\no a census.\no a sample survey.\no an experiment.\no an 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, which isn't the case here. An observational study just observes without asking for rankings. In a sample survey, a subset (the random radio - listeners) of the population (all radio - listeners) is surveyed for information, which is what's happening as they are asked to rank songs.
Answer:
B. a sample survey