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April 16, 2014

April 16, 2014

Posted by **Lucy** on Sunday, March 30, 2008 at 4:42pm.

Answer: 3/5

2) Tickets are numbered 1 to 50 and placed in a box. Three tickets are drawn at random without replacement. What is the probability that their numbers are all greater than 25?

Answer: 23/196

Are these answers correct?

Thanks for your help.

- Algebra II -
**Reiny**, Sunday, March 30, 2008 at 5:11pm1.

prob(a 3) = 1/6

prob(greater than 3) = 3/6 = 1/2

since you want prob a red 3**AND**

you would have

(1/6)*(1/2) = 1/12

How did you get 3/5 ?

2.

prob(first greater than 25) = 26/50

prob(second greater than 25) 25/49

prob (third greater than 25) = 24/48

so ...

26/50 * 25/49 * 24/48 = 13/98

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