Given the Contingency Table Shown Here, What Is the Probability $\quad$

question 71

Multiple Choice

Given the contingency table shown here, what is the probability that a mother smoked during pregnancy or that she graduated from college? $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Smoked during }$$\quad$ $\text { Didn't Smoke during }$

$\begin{array}{|c|r|r|r|}\hline \text { Mother's Education } & \text { Pregnancy } & \text { Pregnancy } & \text { Row Total } \\\hline\text { Below High School } &393 & 640 &1,033\\\hline \text { High School }&560 & 1,370&1,930 \\\hline \text { Some College }&121 & 635 &756\\\hline\text { College Degree} &48 & 550 &598\\\hline \text { Col Total } &1,122 & 3,209&4,331\\\hline\end{array}$

• A).0111
• B).2591
• C).3861
• D).7850

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Definitions:

Small Firms

Small firms are businesses with a relatively small number of employees, limited revenue, and a localized operational base, often contributing significantly to innovation and employment.

Economies of Scale

Cost benefits that companies gain from their operation size, where the cost for each unit of production typically falls as the scale expands.

Constant Returns to Scale

A situation in production where increasing all inputs by a certain factor results in output increasing by the same factor.

Average Total Cost

The total cost divided by the quantity of output produced; it includes all variable and fixed costs.