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21 Nov 2024, 01:30
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D
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Difficulty:
25%
(medium)
Question Stats:
79% (02:21) correct
21%
(03:06)
wrong
based on 135
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The ratio of men to women in a group is 2:3. 36% of the people in the group do not have a college degree while 60% of the women in the group have a college degree. If 1 person is to be randomly selected from the group, what is the probability that he is a man with a college degree?
A. 0.12
B. 0.18
C. 0.24
D. 0.28
E. 0.50
A. 0.12
B. 0.18
C. 0.24
D. 0.28
E. 0.50
21 Nov 2024, 04:33
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I would do a matrix:
..................Men......Women......Total
College.........28......... 36............64
C/ ...............12 ..........24 ..........36
Total.............40 .........60 .........100
x : given from the prompt
28 men have a college degree, 28/100=0.28 => Answer D
..................Men......Women......Total
College.........28......... 36............64
C/ ...............12 ..........24 ..........36
Total.............40 .........60 .........100
x : given from the prompt
28 men have a college degree, 28/100=0.28 => Answer D
21 Nov 2024, 13:12
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Bunuel
| M | W | ||
| d | 28 | 36 (60% of 60) | 64 |
| d' | 12 | 24 | 36 |
| 40 | 60 | 100 | |
| As, m:w=2:3 | |||
Easy peasy!
