Question 1198371
.


                                Part (a)


<pre>
    P = {{{(9/(9+4))*(9/13)}}} = {{{(9/13)^2}}} = {{{81/169}}} = 0.4793 (rounded).    <U>ANSWER</U>
</pre>

Part (a) is complete.



&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Part (b)


<pre>
    P = {{{(9/13)*(8/12)}}} = {{{(9/13)*(2/3)}}} after reducing = {{{18/39}}}= 0.4615  (rounded).    <U>ANSWER</U>
</pre>

Part (b) is complete, too.


Solved.