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

question 128

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 is over 40 years of age given that they drink root beer.

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

Recognize key brain structures and their roles in emotion and memory.

Identify the basic premises of family therapy and group therapy.

Understand the impact of societal expectations and roles in shaping behavior.

Understand how psychological dysfunction can arise from individual perceptions and societal pressures.

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Definitions:

Sample Proportion

The fraction or percentage of the sample that has a particular property or characteristic.

Population Proportion

The fraction or percentage of individuals in a population that exhibit a specific attribute or characteristic.

Sample Proportion

The ratio or fraction of sample observations that belong to a particular category or characteristic.

Standard Deviation

A parameter for evaluating the breadth of dispersion or difference in a set of figures.