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probability question
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rajmirra
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desihokie wrote:got this on powerprep
1/8 would be my choice. What is the OA?.desihokie wrote:got this on powerprep
25% of 156 people are self employed which is 1/4*156= 39
So people who are self employed but not married is 70-39 = 31
Probability of people who are self employed but not married is 31/248 which is 1/8.
Correct me if I am wrong.
Hi,
(According to me),
There are 3 categories
1.Married - 156
2.Self Employed - 70
3.Married & Self Employed is 25% of married = 25% of 156 = 39
So, no. of only Self Employed = 70-39 = 31
Hence, Ans: Prob = 31/248 = 1/8
molly
(According to me),
There are 3 categories
1.Married - 156
2.Self Employed - 70
3.Married & Self Employed is 25% of married = 25% of 156 = 39
So, no. of only Self Employed = 70-39 = 31
Hence, Ans: Prob = 31/248 = 1/8
molly
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sibbineni
- Master | Next Rank: 500 Posts
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- Joined: Fri Jan 04, 2008 8:10 pm
- Thanked: 15 times
Total people=248
married=156
selfemployed=70
25% of people are married and self employed which is
248*.25=39
So people who are not married but selfemployed is 70-39=31
Probability of people who are self employed but not married is 31/248 which is 1/8.
married=156
selfemployed=70
25% of people are married and self employed which is
248*.25=39
So people who are not married but selfemployed is 70-39=31
Probability of people who are self employed but not married is 31/248 which is 1/8.
