The following table shows the results of a survey of 410 authors by a (fictitious) publishing company: $$\begin{array} { | l | l | l | l | }
\hline & \begin{array} { l }
\text { New } \
\text { Authors }
\end{array} & \begin{array} { l }
\text { Established } \
\text { Authors }
\end{array} & \text { Total } \
\hline \text { Successful } & 80 & 50 & 130 \
\hline \text { Unsuccessful } & 130 & 150 & 280 \
\hline \text { Total } & 210 & 200 & 410 \
\hline
\end{array}$$
An author is chosen at random.
Compute the estimated probability of the event that the author is a new author.

Question

The following table shows the results of a survey of 410 authors by a (fictitious) publishing company: $$\begin{array} { | l | l | l | l | } 
\hline & \begin{array} { l } 
\text { New } \
\text { Authors }
\end{array} & \begin{array} { l } 
\text { Established } \
\text { Authors }
\end{array} & \text { Total } \
\hline \text { Successful } & 80 & 50 & 130 \
\hline \text { Unsuccessful } & 130 & 150 & 280 \
\hline \text { Total } & 210 & 200 & 410 \
\hline
\end{array}$$ ​
An author is chosen at random.
Compute the estimated probability of the event that the author is a new author.

Quizplus · Accepted Answer

The Answer of The following table shows the results of a survey of 410 authors by a (fictitious) publishing company: $$\begin{array} { | l | l | l | l | } 
\hline & \begin{array} { l } 
\text { New } \
\text { Authors }
\end{array} & \begin{array} { l } 
\text { Established } \
\text { Authors }
\end{array} & \text { Total } \
\hline \text { Successful } & 80 & 50 & 130 \
\hline \text { Unsuccessful } & 130 & 150 & 280 \
\hline \text { Total } & 210 & 200 & 410 \
\hline
\end{array}$$ ​
An author is chosen at random.
Compute the estimated probability of the event that the author is a new author.

The Following Table Shows the Results of a Survey of 410