The Following Table Shows the Results of a Survey of 350

Multiple Choice

The following table shows the results of a survey of 350 authors by a (fictitious) publishing company: $$\begin{array} { | l | l | l | l | } \hline & \begin{array} { l } \text { New } \\\text { Authors }\end{array} & \begin{array} { l } \text { Established } \\\text { Authors }\end{array} & \text { Total } \\\hline \text { Successful } & 40 & 10 & 50 \\\hline \text { Unsuccessful } & 140 & 160 & 300 \\\hline \text { Total } & 180 & 170 & 350 \\\hline\end{array}$$ An author is chosen at random.
Compute the estimated probability of the event that the author is established and successful.

A) $\frac { 4 } { 35 }$
B) $\frac { 1 } { 17 }$
C) $\frac { 17 } { 35 }$
D) $\frac { 1 } { 7 }$
E) $\frac { 1 } { 35 }$