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A polling organization is checking its database to see if the data sources it used sampled the same ZIP codes. The variable Datasource = 1 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 -0.0229. It concludes that the correlation is low enough to state that there is no dependency between ZIP code and Source of Data. Comment Choose the correct answer below. O A. A correlation of -0.0229 is very close to zero, which implies that there is a very strong relation between the variables O B. A correlation must be between 0 and 1, so the correlation of -0.0229 must have been calculated incorrectly. O C. The source of the data is categorical, which will almost always result in very low correlation values These types of correlations can only be interpreted in the rare instances when the correlation is close to -1 or 1. O D. The source of the data is categorical The correlation is meaningless.

A polling organization is checking its database to see if the data sources it used sampled the same ZIP codes. The variable Datasource = 1 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 -0.0229. It concludes that the correlation is low enough to state that there is no dependency between ZIP code and Source of Data. Comment Choose the correct answer below. O A. A correlation of -0.0229 is very close to zero, which implies that there is a very strong relation between the variables O B. A correlation must be between 0 and 1, so the correlation of -0.0229 must have been calculated incorrectly. O C. The source of the data is categorical, which will almost always result in very low correlation values These types of correlations can only be interpreted in the rare instances when the correlation is close to -1 or 1. O D. The source of the data is categorical The correlation is meaningless.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 23PPS
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A polling organization is checking its database to see if the data sources it used sampled the same ZIP codes. The variable Datasource = 1 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 - 0.0229. It concludes that the correlation is low enough to state that there is no dependency between ZIP code and Source of Data. Comment. Choose the correct answer below. O A. A correlation of -0.0229 is very close to zero, which implies that there is a very strong relation between the variables O B. A correlation must be between 0 and 1, so the correlation of -0.0229 must have been calculated incorrectly. O C. The source of the data is categorical, which will almost always result in very low correlation values. These types of correlations can only be interpreted in the rare instances when the correlation is close to -1 or 1. O D. The source of the data is categorical The correlation is meaningless.
Transcribed Image Text:A polling organization is checking its database to see if the data sources it used sampled the same ZIP codes. The variable Datasource = 1 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 - 0.0229. It concludes that the correlation is low enough to state that there is no dependency between ZIP code and Source of Data. Comment. Choose the correct answer below. O A. A correlation of -0.0229 is very close to zero, which implies that there is a very strong relation between the variables O B. A correlation must be between 0 and 1, so the correlation of -0.0229 must have been calculated incorrectly. O C. The source of the data is categorical, which will almost always result in very low correlation values. These types of correlations can only be interpreted in the rare instances when the correlation is close to -1 or 1. O D. The source of the data is categorical The correlation is meaningless.
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