Chapter 5.3, Problem 94E

To determine

To find: Whether the results are accurate or not.

Answer to Problem 94E

No, because the provided events cannot be considered independent events

Explanation of Solution

Given:

  $\begin{array}{l}P\left(\text{Flight arrive on time}\right)=85\%=0.85\\ P\left(\text{All flights are on time}\right)=0.5220\end{array}$

The probability of flights arriving on time are on time is not independent which implies that there is a possibility that if one flight is delayed other flight may also get delayed because of the first flight. Since, the events are not independent. Thus, the results are not appropriate because results have been computed using the multiplication rule which is used in case of independent events.