The manager of a DVD rental store analyzed the number of DVD rentals (y) to the number of weeks the DVD had been available (x) and found a strong negative correlation. What does this mean? As the number of weeks the DVD has been available increases, the number of rentals of that DVD increases. As the number of weeks the DVD has been available increases, the number of rentals of that DVD decreases. No customers rent old DVDs. When a DVD is new, it causes people to rent it.

The manager of a DVD rental store analyzed the number of DVD rentals (y) to the number of weeks the DVD had been available (x) and found a strong negative correlation. What does this mean? As the number of weeks the DVD has been available increases, the number of rentals of that DVD increases. As the number of weeks the DVD has been available increases, the number of rentals of that DVD decreases. No customers rent old DVDs. When a DVD is new, it causes people to rent it.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 2CYU

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Question

The manager of a DVD rental store analyzed the number of DVD rentals (y) to the number of weeks the DVD had been available (x) and found a strong negative correlation. What does this mean?

		As the number of weeks the DVD has been available increases, the number of rentals of that DVD increases.
		As the number of weeks the DVD has been available increases, the number of rentals of that DVD decreases.
		No customers rent old DVDs.
		When a DVD is new, it causes people to rent it.

Definition Definition Relationship between two independent variables. A correlation tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

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