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25 Sep 2008, 14:03
Kudos
Bookmarks
I have this question, I didnt find the answer among the answer choices??
A shipment of 8 television sets contains 2 black-and-white sets and 6color sets. If 2
television sets are to be chosen at random from this shipment, what is the probability
that at least 1 of the 2 sets chosen will be a black-and-white set?
A. 1/7 B. ¼ C. 5/14 D. 11/28 E. 13/26
Let's calculate the probability if all are colors then
it is : total number of color combination sets / total number of combination.
The total number of color combination sets is : combination (2 out 6) = 15
The total number of comibnation sets is : combinatioon (2 out of 8) = 28
then answer is 1 - 15/28 = 13/28
A shipment of 8 television sets contains 2 black-and-white sets and 6color sets. If 2
television sets are to be chosen at random from this shipment, what is the probability
that at least 1 of the 2 sets chosen will be a black-and-white set?
A. 1/7 B. ¼ C. 5/14 D. 11/28 E. 13/26
Let's calculate the probability if all are colors then
it is : total number of color combination sets / total number of combination.
The total number of color combination sets is : combination (2 out 6) = 15
The total number of comibnation sets is : combinatioon (2 out of 8) = 28
then answer is 1 - 15/28 = 13/28
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08 Dec 2008, 22:01
Kudos
Bookmarks
Yes it looks your answer is correct and the mentioned answer choice are not good. (They mentiond by mistake 13/26).
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
