Find the Indicated Probability If One of the 255 Subjects Is Randomly Selected, Find

question 158

Multiple Choice

Find the indicated probability. Express your answer as a simplified fraction unless otherwise noted.
-The table below shows the soft drinks preferences of people in three age groups.
$$\begin{array} { r | c c c } & \text { cola } & \text { root beer } & \text { lemon-lime } \\\hline \text { under 21 years of age } & 40 & 25 & 20 \\\text { between 21 and 40 } & 35 & 20 & 30 \\\text { over 40 years of age } & 20 & 30 & 35\end{array}$$
If one of the 255 subjects is randomly selected, find the probability that the person drinks root beer given that they are over 40.

• A) \(\frac { 6 } { 17 }\)
• B) \(\frac { 2 } { 17 }\)
• C) \(\frac { 2 } { 5 }\)
• D) None of the above is correct.

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Definitions:

Functionalism

A psychological school of thought focusing on how mental and behavioral processes function - how they enable the organism to adapt, survive, and flourish.

Structuralism

An early school of psychology that used introspection to explore the elemental structure of the human mind.

Edward Titchener

A British psychologist who founded structuralism, an early school of psychology that aimed to analyze the adult mind in terms of the simplest definable components and then to find the way in which these components fit together in complex forms.

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