The Following Are Costs of Advertising (In Thousands of Dollars)

question 115

Multiple Choice

The following are costs of advertising (in thousands of dollars) and the numbers of products sold (in thousands) : $$\begin{array} { c | r r r r r r r r } \text { Cost } & 9 & 2 & 3 & 4 & 2 & 5 & 9 & 10 \\\hline \text { Number } & 85 & 52 & 55 & 68 & 67 & 86 & 83 & 73\end{array}$$ The equation of the regression line is ^y = 2.78846x + 55.7885. Find the coefficient of determination.

• A) 0.2353
• B) 0.5009
• C) 0.7077
• D) -0.0707

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Definitions:

Social Causes

Underlying societal factors that contribute to specific outcomes or conditions, such as poverty, inequality, and social norms.

Biologically Caused

Phenomena or conditions that result directly from genetic, cellular, or physiological processes.

Organic Illness

Health conditions that are caused by physiological or biological factors, often involving structural or functional changes in body organs.

Head Injuries

Head injuries involve any trauma to the scalp, skull, or brain, ranging from mild to severe impacts.