Find the Indicated Probability If One of the 956 Subjects Is Randomly Selected, Find

question 31

Multiple Choice

Find the indicated probability. Express your answer as a simplified fraction unless otherwise noted.
-The table below describes the smoking habits of a group of asthma sufferers.
$\begin{array}{r|crrr} & &\text { Light } & \text { Heavy } \\& \text { Nonsmoker } & \text { smoker } & \text { smoker } & \text { Total } \\\hline \text { Men } & 358 & 71 & 69 & 498 \\\text { Women } & 304 & 78 & 76 & 458 \\\text { Total } & 662 & 149 & 145 & 956\end{array}$

If one of the 956 subjects is randomly selected, find the probability that the person chosen is a nonsmoker given that it is a woman. Round to the nearest thousandth.

• A) 0.459
• B) 0.379
• C) 0.318
• D) 0.664

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Definitions:

High-low Method

A technique used in managerial accounting to estimate fixed and variable costs by analyzing the highest and lowest levels of activity and the associated costs.

Variable Cost

A cost that varies directly with the level of production or volume, such as materials and labor directly involved in the production process.

Least-squares Method

A statistical technique used to determine the line of best fit by minimizing the sum of the squares of the differences between observed and estimated values.

High-low Method

A technique used in cost accounting to determine the variable and fixed components of a cost by analyzing the highest and lowest levels of activity.