A fleet of nine taxis is to be dispatched to three airports in such a way that three go to airport A, five go to airport B, and one goes to airport C. In how many distinct ways can this be accomplished?
2.44) Refer to Exercise 2.43. Assume that taxis are allocated to airports at random.
a) If exactly one of the taxis is in need of repair, what is the probability that it is dispatched to airport C?
b) If exactly three of the taxis are in need of repair, what is the probability that every airport receives one of the taxis requiring repairs?
So, my answer to 2.44a is 1/9. Hopefully this is correct at least :)
For 2.44b, my guess was
(3C1)(1/3)(2/3)2 * (5C1)(1/3)(2/3)4 * 1/3
The solutions manual on chegg (which seems to be riddled with errors) says something completely different. Is my calculation correct?
<em>The other no. is:</em>
<u><em>32</em></u>
<em>As you can see that in the ratio given, </em><em>3</em><em> is the smaller no. and </em><em>12</em><em> too.</em>
<em>So when we divide </em><em>12 </em><em>by </em><em>3</em><em>, we get </em><u><em>4 </em></u>
<em>Then to find the other no. we need to multiply </em><em>4</em><em> with </em><em>8</em><em> (which is the other no. in the ratio given)</em>
<em>Therefore, we get the other no. as </em><u><em>32</em></u>
<em>And also when you divide </em><em>12</em><em> by </em><em>32</em><em>, </em>
<em>You get the answer as </em><u><em>3</em></u><u><em> by </em></u><u><em>8</em></u><em> </em><em>(which is the given ratio) </em>
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<em>Hope you found this helpful!</em>
<em>THANK YOU!!</em>
<em>∝</em><em> Sidhdi</em>
Answer:
im unsure. sorry
Step-by-step explanation:
It’s C because something something (it had to be 20 characters long)
