Find the Coefficient of Correlation of the Line That Best $\{ ( 2,9 ) , ( 5,15 ) , ( 9,23 ) \}$

question 72

Multiple Choice

Find the coefficient of correlation of the line that best fits the data set. $\{ ( 2,9 ) , ( 5,15 ) , ( 9,23 ) \}$

• A) \(r = 1\)
• B) \(r = - 1\)
• C) \(r = 0.6\)
• D) \(r = - 0.2\)
• E) \(r = 0.2\)

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Definitions:

Demand Increase

A situation where the desire for a good or service exceeds the previous level at the current price.

Market Equilibrium

The point at which the quantity demanded by consumers equals the quantity supplied by producers, resulting in no economic pressure to change the price.

Scarce Inputs

Resources or factors of production that are limited in supply, which constrains economic output and allocative efficiency.

Petroleum Production

The process of extracting crude oil from the earth and refining it into usable petroleum products.