The Following Table Shows the Results of a Survey of 360

question 209

Multiple Choice

The following table shows the results of a survey of 360 authors by a (fictitious) publishing company: $$\begin{array} { | l | l | l | l | } \hline & \begin{array} { l } \text { New } \\\text { Authors }\end{array} & \begin{array} { l } \text { Established } \\\text { Authors }\end{array} & \text { Total } \\\hline \text { Successful } & 50 & 40 & 90 \\\hline \text { Unsuccessful } & 120 & 150 & 270 \\\hline \text { Total } & 170 & 190 & 360 \\\hline\end{array}$$ A successful author is chosen at random.
Compute the estimated probability of the event that the successful author is established.

• A) \(\frac { 5 } { 9 }\)
• B) \(\frac { 19 } { 36 }\)
• C) \(\frac { 4 } { 9 }\)
• D) \(\frac { 5 } { 19 }\)
• E) \(\frac { 1 } { 9 }\)

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Definitions:

Respiration

The process by which living beings exchange gases with their environment, primarily involving the intake of oxygen and the release of carbon dioxide.

Medulla Oblongata

The lowest part of the brainstem that controls vital life-sustaining functions such as heartbeat, breathing, blood pressure, and digestion.

Hypothalamus

A region of the brain that controls many bodily functions, including hunger, thirst, temperature regulation, and hormone release.

Sleep/Wake Cycle

The circadian rhythm regulating periods of sleep and wakefulness over a 24-hour cycle, influenced by environmental light-dark cycles and internal biological clocks.