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Mathematics 9 Online
OpenStudy (anonymous):

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 a census. a sample survey. an experiment. an observational study.

OpenStudy (anonymous):

anyone have an idea. i'm not sure

OpenStudy (anonymous):

@Keygrover

OpenStudy (keygrover):

It's a simple survey

OpenStudy (anonymous):

Thank you so much. You are the best!!!

OpenStudy (keygrover):

I try to help as much as I can

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