Consider the Following to Answer the Question(s) Below

question 18

Multiple Choice

Consider the following to answer the question(s) below:
A small independent organic food store offers a variety of specialty coffees. To determine whether price has an impact on sales, the managers kept track of how many kilograms of each variety of coffee were sold last month. The data, scatterplot and summary statistics are shown below.

-A regression on a pair of variables, x and y, results in the value of R2 equal to 0.7834. Which of the following statements is true?

• A) The correlation between x and y must be 0.7834.
• B) The correlation between x and y must be -0.8851.
• C) The correlation between x and y must be -0.7834.
• D) The correlation between x and y must be either 0.8851 or -0.8851.
• E) The correlation between x and y must be 0.8851.

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Definitions:

Violate

To break or fail to comply with a rule, law, agreement, or principle.

Deception

The act of misleading or tricking someone into believing something that is not true.

Police

Law enforcement officers tasked with maintaining public order, preventing, and detecting crime.

Supreme Court

The highest federal court in the United States, with ultimate appellate jurisdiction over all federal and state court cases that involve a point of federal law.