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Probability Question

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Probability Question

by MattKoch » Fri Jan 07, 2011 9:18 pm
This question is very easy but I can't seem to figure it out. Can someone please advise, thank you.

Kyle and Chris work at a grocery store with 4 other workers. For a survey, 2 of the 6 workers will be randomly chosen to be interviewed. What is the probability that both Kyle and Chris will both be chosen?

a. 1/15
b. 1/12
c. 1/9
d. 1/6
e. 1/3
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by anshumishra » Fri Jan 07, 2011 9:25 pm
MattKoch wrote:This question is very easy but I can't seem to figure it out. Can someone please advise, thank you.

Kyle and Chris work at a grocery store with 4 other workers. For a survey, 2 of the 6 workers will be randomly chosen to be interviewed. What is the probability that both Kyle and Chris will both be chosen?

a. 1/15
b. 1/12
c. 1/9
d. 1/6
e. 1/3
No. of ways to chose 2 people out of 6 = 6C2 = 15
No. of ways to choose 2 people ,Kyle and Chris = 1

So, the probability = 1/15.

A
Thanks
Anshu

(Every mistake is a lesson learned )
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