The following table contains data from a study of two airlines which fly to Small Town, USA. $\begin{array}{l|cc}
& \text { Number of flight} & \text {Number of flights } \
& \text { which were on time } & \text { which were late } \
\hline \text { Podunk Airlines } & 33 & 6 \
\text { Upstate Airlines } & 43 & 5
\end{array}$
If one of the 87 flights is randomly selected, find the probability that the flight selected arrived on time given that an Upstate Airlines flight.
A) $\frac { 11 } { 76 }$
B) $\frac { 43 } { 87 }$
C) $\frac { 43 } { 48 }$
D) None of the above is correct. it was

Question

The following table contains data from a study of two airlines which fly to Small Town, USA. $\begin{array}{l|cc} 
& \text { Number of flight} & \text {Number of flights } \
& \text { which were on time } & \text { which were late } \
\hline \text { Podunk Airlines } & 33 & 6 \
\text { Upstate Airlines } & 43 & 5
\end{array}$
If one of the 87 flights is randomly selected, find the probability that the flight selected arrived on time given that an Upstate Airlines flight.
A) $\frac { 11 } { 76 }$
B) $\frac { 43 } { 87 }$
C) $\frac { 43 } { 48 }$
D) None of the above is correct. it was

Quizplus · Accepted Answer

Given that the flight is from Upstate Airlines, we only consider the flights from Upstate Airlines. There are 43 on-time flights out of 48 total flights (43 on-time + 5 late) for Upstate Airlines, so the probability is $\frac{43}{48}$.

The Following Table Contains Data from a Study of Two