Chapter 5.3, Problem 93E

To determine

To find: Whether the results are accurate or not.

Answer to Problem 93E

No because events cannot be considered independent events

Explanation of Solution

Given:

  $\begin{array}{l}P\left(\text{Females older than 55}\right)=27\%=0.27\\ P\left(\text{U}\text{.S females are pregnant}\right)=6\%=0.06\\ P\left(\text{Over 55 and pregnant}\right)=0.0162\end{array}$

The probability of being pregnant for the females of over 55 is very low which implies that these two events are not independent. Since, the events are not independent. It is not appropriate to use the multiplication to compute the probability of over 55 and being pregnant.