- #1
Topgun_68
- 34
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Looking for confirmation on probability!
Sorry, posted in wrong forum. It was a probability question which is why I posted it here. Can someone move it to homework section if need be. Thanks!
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Can someone let me know if I am doing this correctly, because the answer I am getting seems to small. I thought the probability would be much higher since the woman out number the men by over 50% and we are just looking for 1.
Question: Suppose that a programming team has 17 women and 15 men. Three people must be chosen to work on a special project. What is the probability that the group selected has at least 1 women in it?
My work:
(17C1) -> To choose 1 women
(15C2) -> To choose 2 men
(32C3) -> Total groups of 3 among all people
(17C1)(15C2)
--------------
32C3 17 * 105
--------
4960
1785
----- = .360
4950 I've seem some examples where they subtract this answer from 1 which not looks more reasonable, but is it correct and can someone explain why?
ex.. 1 - .360 = .640
Thanks for any input!
Sorry, posted in wrong forum. It was a probability question which is why I posted it here. Can someone move it to homework section if need be. Thanks!
-------------------------------------------------------------------------
Can someone let me know if I am doing this correctly, because the answer I am getting seems to small. I thought the probability would be much higher since the woman out number the men by over 50% and we are just looking for 1.
Question: Suppose that a programming team has 17 women and 15 men. Three people must be chosen to work on a special project. What is the probability that the group selected has at least 1 women in it?
My work:
(17C1) -> To choose 1 women
(15C2) -> To choose 2 men
(32C3) -> Total groups of 3 among all people
(17C1)(15C2)
--------------
32C3 17 * 105
--------
4960
1785
----- = .360
4950 I've seem some examples where they subtract this answer from 1 which not looks more reasonable, but is it correct and can someone explain why?
ex.. 1 - .360 = .640
Thanks for any input!
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