Can a Low Barometer Reading Be Used to Predict Maximum $$\begin{array} { c | c c c c c } \hline x & 1014 & 935 & 980 & 955 & 995 \\\hline y & 50 & 80 & 60 & 135 & 84 \\\hline\end{array}$$

question 15

Multiple Choice

Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone? Let x be the lowest pressure (in millibars) as a cyclone approaches, and let y be the maximum wind speed (in miles per hour) of the cyclone. Suppose a random sample of cyclones gave the following information. $$\begin{array} { c | c c c c c } \hline x & 1014 & 935 & 980 & 955 & 995 \\\hline y & 50 & 80 & 60 & 135 & 84 \\\hline\end{array}$$ Given that the value of r is -0.556, should y increase as x increases, does the value of r imply that y should tend to increase, decrease, or remain the same? Explain.

• A)Since r is zero, as x increases, y remains the same.
• B)Since r is negative, as x increases, y decreases.
• C)Since r is negative, as x increases, y increases.
• D)Since r is positive, as x increases, y increases.
• E)Since r is positive, as x increases, y decreases.

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Definitions:

Indirect Costs

Expenses not directly tied to a specific project or activity but necessary for the general operation of an organization, such as utilities, rent, and administrative salaries.

Fixed Costs

Expenses that do not change with the level of production or business activity, such as rent or salaries.

Cost-Benefit Analysis

A financial assessment comparing the costs and benefits of a project or decision to determine its worth.

Utility Analysis

A method used in human resources and organizational psychology to assess the economic value or effectiveness of interventions like training programs, by comparing costs and benefits.