I If the Coefficient of Correlation Is -0

question 17

Multiple Choice

i. If the coefficient of correlation is -0.81, what is the coefficient of determination? ii. If the value of r is -0.96, what does this indicate about the dependent variable as the independent variable increases?
iii. If the correlation between sales and advertising is +0.6, what percent of the variation in sales can be attributed to advertising?

• A) 0.6561; it decreases;36%.
• B) 0.6561; it increases;36%.
• C) 0.6561; it decreases;60%.
• D) 0.9; it decreases;6%.
• E) 0.9; it increases;60%.

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Definitions:

Consumer Warranties

Legal guarantees provided to consumers that a product will meet certain quality and reliability standards, and that defective items will be repaired or replaced.

Option Contract

A contract granting the holder the right, but not the obligation, to buy or sell an asset at a specified price on or before a specified date.

Revocation

The calling back of an offer by the offeror.

Real Property

Land and anything permanently attached to it, such as buildings and structures.