A class consists of 60% men and 40% women. Blond men compose 25% of the class, and blond women make up 20% of the class. If a student is chosen at random and is found to be a male, what is the probability that the student is blond?

A. 0.34
B. 0.42
C. 0.54
D. 0.63

Question

06-05-2015
Mathematics

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A class consists of 60% men and 40% women. Blond men compose 25% of the class, and blond women make up 20% of the class. If a student is chosen at random and is found to be a male, what is the probability that the student is blond?

A. 0.34
B. 0.42
C. 0.54
D. 0.63

Sagot :

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W0lf93 W0lf93 · Answer 1 · 2017-05-13T06:02:21-04:00

W0lf93 W0lf93

13-05-2017

If you make a table with a universe of 100 students you can check that 25 aree blond men, 60 - 25 = 35 are non blond men, 20 are blond women and 40 - 20 are non blond women. If you know that the studen is a male, you reduce the universe to 60 students. And the probability that the student is blond is 25 out of 60 = 25/60 = 0.4167 = 0.42. So, the answer is 0.42,

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123456da 123456da · Answer 2 · 2017-05-16T10:47:41-04:00

123456da 123456da

16-05-2017

im on the test its 0.42

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