The following table shows the results of a survey of 340 authors by a (fictitious) publishing company: $$\begin{array} { | l | l | l | l | }
\hline & \begin{array} { l }
\text { New } \
\text { Authors }
\end{array} & \begin{array} { l }
\text { Established } \
\text { Authors }
\end{array} &{ \text { Total } } \
\hline \text { Successful } & 40 & 20 & 60 \
\hline \text { Unsuccessful } & 110 & 170 & 280 \
\hline \text { Total } & 150 & 190 & 340 \
\hline
\end{array}$$ An author is chosen at random.
Compute the estimated probability of the event that the author is unsuccessful and new.

A) $\frac { 11 } { 34 }$
B) $\frac { 1 } { 2 }$
C) $\frac { 23 } { 34 }$
D) $\frac { 11 } { 15 }$
E) $\frac { 4 } { 15 }$

Question

The following table shows the results of a survey of 340 authors by a (fictitious) publishing company: $$\begin{array} { | l | l | l | l | } 
\hline & \begin{array} { l } 
\text { New } \
\text { Authors }
\end{array} & \begin{array} { l } 
\text { Established } \
\text { Authors }
\end{array} &{ \text { Total } } \
\hline \text { Successful } & 40 & 20 & 60 \
\hline \text { Unsuccessful } & 110 & 170 & 280 \
\hline \text { Total } & 150 & 190 & 340 \
\hline
\end{array}$$   An author is chosen at random.
Compute the estimated probability of the event that the author is unsuccessful and new.
 
A)  $\frac { 11 } { 34 }$
B)   $\frac { 1 } { 2 }$
C)   $\frac { 23 } { 34 }$
D)   $\frac { 11 } { 15 }$
E)   $\frac { 4 } { 15 }$

Quizplus · Accepted Answer

The probability of choosing an unsuccessful and new author is $\frac{110}{340} = \frac{11}{34}$.

The Following Table Shows the Results of a Survey of 340