Question: Sample survey. A polling organization is checking its database to see if the two data sources it used sampled the same zip codes. The variable

Sample survey. A polling organization is checking its database to see if the two data sources it used sampled the same zip codes. The variable if the data source is MetroMedia, 2 if the data source is DataQwest, and 3 if it’s RollingPoll. The organization finds that the correlation between five-digit zip code and Datasource is . It concludes that the correlation is low enough to state that there is no dependency between Zip Code and Source of Data. Comment.

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